◀ Psychology hub · Start of the book Final exam · Chapters 1 to 14
Psychology · Final Exam

Final Exam Study Guide

The final covers all 14 chapters. That is a lot to hold at once. So this guide starts with the big threads that tie the chapters together. Then it gives each chapter one screen. Next come tables that line up ideas from many chapters side by side. After that you will find worked examples, the common traps, a 30-item self-test, and a cram sheet. Work a part a day and the whole course fits into a week.

How this guide is built

  • Part 1 · The threads. Five ideas that show up in almost every chapter.
  • Part 2 · The chapters. One screen each, with the facts most worth knowing.
  • Part 3 · Compare tables. Theorists, methods, kinds of learning, memory systems, emotion theories, therapies, and more.
  • Part 4 · Worked examples. How to reason through the question types, step by step.
  • Part 5 · Traps. The mix-ups that cost the most points.
  • Part 6 · Self-test. Thirty items from across the course, each with a reason.
  • Part 7 · Cram sheet. The whole course in a few tables.

Part 1 · The whole courseThe threads that run through every chapter

A final exam rewards the person who sees links. A question about memory may really test research methods. A question about stress may really test the nervous system. These five threads are the links. Learn them first, and each chapter will feel like part of one story.

Thread 1 · Nature and nurture, working together

The old question was “nature or nurture?” Nature means what we inherit, such as genes and the brain they build. Nurture means experience, such as family, learning, culture, and stress. Today the answer is “both, all the time.” Each one shapes the other.

Genes do not act like a fixed script. They set a range of leanings. Experience can turn genes up or down. The field of epigenetics studies how this happens without changing the DNA code. And the push goes the other way too. A child with a bold temper seeks out new things, and that changes the experiences the child gets.

The key tool here is the twin study. Identical twins share almost all their genes. Fraternal twins share about half. If identical twins are more alike on a trait, genes likely play a part. The number that results is heritability. It says how much of the differences between people in a group come from genetic differences. It never says how much of one person's trait is “from genes.”

Nature and nurture: two arrows that never stop crossing Every trait in this course comes from both, acting on each other. NATURE: genes inherited DNAtemperament at birthbrain wiring and hormonesinborn readiness for language NURTURE: experience family and attachmentlearning and schoolingculture and peersstress, nutrition, drugs BEHAVIOR AND MIND epigenetics: experience turns genes up or down genes shape which experiences we seek Ch 8 IQ heritability: about 0.4 to 0.5 in childhood, 0.6 to 0.8 in adulthood. The Flynn effect shows the world matters too. Ch 9 Twin studies and epigenetics. Ch 11 The Big Five are moderately heritable. Ch 8 Chomsky and Skinner on language. Ch 14 Diathesis-stress: a disorder starts when an inborn weak spot (diathesis) meets a stressful life event.
Figure 1. Nature and nurture act on each other. The question on the exam is rarely “which one?” It is usually “how do they work together here?”
Where this thread shows up
  • Chapter 1: the nature-nurture question, now seen as both working together.
  • Chapter 8: intelligence. Heritability rises with age, yet the Flynn effect and stereotype threat show the power of the world around us.
  • Chapter 9: development. Maturation unfolds on a schedule, but attachment depends on care.
  • Chapter 11: the Big Five are moderately heritable, and still shaped by life.
  • Chapter 14: the diathesis-stress model. A weak spot plus stress, not either alone.

Thread 2 · Levels of analysis, from neurons to culture

Any behavior can be studied at many levels. You can zoom all the way in to one neuron. You can zoom all the way out to a whole culture. Each level asks a fair question. None of them is the only “real” answer.

This is why the course has seven perspectives. The biological lens looks at brain, hormones, and genes. The evolutionary lens asks how a behavior helped our ancestors survive. The psychodynamic lens looks for hidden, unconscious motives. The behavioral lens looks at rewards and learning. The cognitive lens looks at thoughts. The humanistic lens looks at growth and free will. The sociocultural lens looks at groups and culture.

When the levels are put together on purpose, we call it the biopsychosocial model. It says body, mind, and social world all shape health and illness. Chapters 13 and 14 lean on it hardest.

Six levels, one behavior: panic before a big exam Read from the bottom (smallest) to the top (largest). Every level is true at once. zoom out 6 · CultureChapters 1, 10, 12 A culture that ties test scores to a person's worth raises the stakes. 5 · The groupChapter 12 Classmates look calm. The student hides the fear to fit in. 4 · The whole personChapters 6, 9, 11 A learned habit of avoiding hard tasks. A high score on neuroticism. 3 · Mental processesChapters 5, 7, 8, 13 Appraisal: “This is a threat and I cannot cope.” Attention narrows. 2 · Brain and body systemsChapters 3, 10, 13 Sympathetic system speeds the heart. The HPA axis releases cortisol. 1 · Neurons and chemicalsChapters 3, 4 The amygdala fires fast. Epinephrine and norepinephrine flood out.
Figure 2. The levels of analysis. A strong essay answer names at least three levels and shows how they feed each other.

Thread 3 · How evidence is weighed

Chapter 2 is not just one chapter. It is the rulebook for every claim in the course. Each time the book says “research shows,” ask three questions.

  1. What method was used? A case study or survey can describe. A correlation can predict. Only an experiment can show cause.
  2. Could something else explain it? Look for a third variable, reversed direction, a placebo effect, or a biased sample.
  3. Has it been repeated? One study can be a fluke. A finding that holds up in new people and new places earns trust.

Two other words guard the door. A test is reliable if it gives the same result each time. It is valid if it measures what it claims to measure. A test can be reliable and still not valid. And a good hypothesis must be falsifiable, which means some result could prove it wrong.

Does X cause Y? A flowchart for any claim in the course Follow the arrows. Each “no” tells you what the study cannot claim. Did the researcherchange X on purpose? Were people randomlyassigned to groups? Control group, and werepeople blind to groups? yes yes no no yes Descriptive or correlational Can describe and predict. Cannot show cause. Check third variable, direction. Groups may already differ A confound could explain the result. Cause is weak. Example: people chose their group. Strong evidence of cause Placebo control and double-blind design rule out expectations. Now ask one more question. Has it replicated in new samples? yes Trust it more no Treat it as tentative
Figure 3. Use this chart on any “which conclusion is justified?” question. The answer is usually the one that claims no more than the method allows.

Thread 4 · The replication story

To replicate a study is to run it again and see if the result holds. In the 2010s, large teams tried to repeat many famous psychology studies. Many results did not hold up, or came out much weaker. This became known as the replication crisis.

The field did not hide from it. It fixed its methods. Many researchers now post their plans before they collect data. They use larger samples and share their data. That is science correcting itself. For the exam, know which famous findings stand firm, which hold with limits, and which fell.

Scorecard: how famous findings from the course have held up Sorted by the evidence as it stands today. Holds up well Holds, with limits Did not hold up Weak design Myth Bystander effectLatané and Darley, Ch 12 Misinformation effectLoftus, Ch 7 Spacing and testingstudy effects, Ch 7 Classical conditioningPavlov, Ch 6 Serial position effectfirst and last items, Ch 7 Ekman's basic facesbroadly, still debated Milgram's obedience65% was one version only Asch's conformityvaries by culture and era Yerkes-Dodson lawa rough rule, Ch 10 Life-change scaleHolmes and Rahe, modest Stereotype threatsmaller than first thought Freud's broad ideaearly life shapes the self Facial feedbackthe pen study, Ch 10 Type A patternoverall, Ch 13 Freud's stage detailsoral, anal, and so on What survives: hostility, not busyness, predicts heart disease. Stanford Prisonno control group, guardswere coached, 1971 Little Albertone child, loose controls,never repeated, 1920 Early Genovese reportsdetails were exaggerated;the puzzle was real “10% of the brain”we use all of it Learning stylesmatching style does not help Left or right brainedhemispheres work as a team Schizophrenia as“split personality”it is a psychotic disorder
Figure 4. The replication scorecard. A finding that fails to replicate is not a scandal for science. It is science working as it should.

Thread 5 · The person and the situation

We tend to explain behavior by the person: “She did it because she is that kind of person.” Psychology keeps finding that the situation matters more than we think. Over-blaming the person is the fundamental attribution error.

Milgram's results came from ordinary people in a strong setting. Bystanders fail to help because of the crowd, not because they are cold. Personality is steady over time, but less steady from one setting to the next. The best predictor is the person and the situation together. Bandura called this loop reciprocal determinism: thoughts, actions, and setting all shape one another.

How to use the threads on the exam. When a question seems to come from nowhere, ask which thread it pulls. Is it about genes and experience? About which level is being studied? About what the method can show? About whether a finding held up? About person or situation? One of the five almost always fits.

Part 2 · One screen per chapterThe fourteen chapters at a glance

Each card holds the core of one chapter. Read the card, then close your eyes and say the main points out loud. If a card feels thin to you, that is the chapter to reread. The unit study guides go deeper on each one.

Chapter 1What Is Psychology?

Psychology is the scientific study of mind and behavior. Testing, not opinion, makes it a science. Its four goals are to describe, explain, predict, and change behavior. Common sense seems to explain everything, but only after the fact. That is hindsight bias.

  • Wundt opened the first lab in Leipzig in 1879 and used introspection.
  • Structuralism (Titchener) asked what the mind is made of. Functionalism (James) asked what it is for.
  • Behaviorism (Watson, 1913; Skinner) studied only what can be seen. The cognitive revolution brought the mind back.
  • Seven perspectives: biological, evolutionary, psychodynamic, behavioral, cognitive, humanistic, sociocultural.
  • A psychiatrist is a medical doctor who can prescribe. Most psychologists are not.

Read Chapter 1 ▶

Chapter 2Psychological Research

A theory is a broad explanation. A hypothesis is a narrow, testable guess. It is written with operational definitions, which spell out exactly how each thing is measured. That makes replication possible.

  • Descriptive methods: case study, naturalistic observation, survey. Surveys need a random sample.
  • Correlation (r runs from −1 to +1) shows two things moving together. It does not prove cause.
  • The experiment changes the independent variable and measures the dependent variable.
  • Random assignment, a placebo control, and a double-blind design let it show cause.
  • Ethics: informed consent, IRB review, limited deception with debriefing, privacy, humane animal care.

Read Chapter 2 ▶

Chapter 3Biopsychology

A neuron takes in signals at its dendrites, adds them up in the cell body, and sends them down the axon. Myelin speeds the signal. Past the threshold, the neuron fires an all-or-none action potential. Na+ rushes in, then K+ flows out.

  • Neurotransmitters cross the synapse, bind to receptors, and are cleared by reuptake or enzymes.
  • An agonist boosts a neurotransmitter. An antagonist blocks it. SSRIs block serotonin reuptake.
  • Sympathetic = fight-or-flight. Parasympathetic = rest-and-digest.
  • Four lobes: frontal (planning, movement), parietal (touch), temporal (hearing), occipital (vision).
  • Split-brain work (Sperry, Gazzaniga) is real. “Left-brained” people are a myth.
  • Hormones travel in the blood. They are slower and longer-lasting than nerve signals.

Read Chapter 3 ▶

Chapter 4States of Consciousness

Consciousness is awareness of yourself and the world. The circadian rhythm is a cycle of about 24 hours. The SCN in the hypothalamus is the master clock, reset by light. It tells the pineal gland when to release melatonin. Adenosine builds sleep pressure while you are awake.

  • Sleep runs through N1, N2, N3 (deep, slow waves) and REM (vivid dreams, body paralyzed).
  • A cycle lasts about 90 minutes. Deep N3 comes early in the night. Long REM comes late.
  • Dream theories: Freud's wish fulfillment and activation-synthesis.
  • Disorders: insomnia, sleep apnea, narcolepsy, and the parasomnias.
  • Drug families: depressants (boost GABA), stimulants (raise dopamine), opioids, hallucinogens. Repeated use brings tolerance.

Read Chapter 4 ▶

Chapter 5Sensation and Perception

Sensation picks up energy and turns it into nerve signals. That step is transduction. Perception organizes those signals and gives them meaning. Bottom-up processing starts from the raw input. Top-down processing uses what you expect.

  • Absolute threshold: the faintest stimulus noticed half the time. Weber's law: the noticeable change is a fixed share, not a fixed amount.
  • Signal detection theory: noticing depends on the signal and on your expectations.
  • Rods see in dim light. Cones see color. Color uses trichromatic coding, then opponent-process coding.
  • Hearing: hair cells in the cochlea. Pitch is explained by place and frequency theories.
  • Gate-control theory: pain can be turned up or down. Gestalt rules and depth cues build what we see.

Read Chapter 5 ▶

Chapter 6Learning

Learning is a lasting change from experience. In classical conditioning (Pavlov), a neutral stimulus is paired with an unconditioned stimulus (US). It becomes a conditioned stimulus (CS) that sets off a conditioned response (CR). In operant conditioning (Thorndike, Skinner), consequences shape voluntary acts.

  • Classical processes: acquisition, extinction, spontaneous recovery, generalization, discrimination.
  • Reinforcement increases behavior. Punishment decreases it. Positive adds; negative removes.
  • Negative reinforcement is not punishment. It removes something bad, so behavior goes up.
  • Shaping rewards each small step closer to the goal.
  • Schedules: FR, VR, FI, VI. Variable-ratio is the hardest to extinguish.
  • Observational learning (Bandura, Bobo doll): attention, retention, reproduction, motivation.

Read Chapter 6 ▶

Chapter 7Memory

Memory has three steps: encoding, storage, and retrieval. The multi-store model moves information from sensory memory to short-term memory to long-term memory. Memory is reconstructive. We rebuild it each time we recall it.

  • Short-term memory holds about four chunks (Cowan). Miller's old figure was seven, plus or minus two.
  • Deep, meaningful encoding beats repetition. That is the levels-of-processing effect.
  • Explicit memory: semantic (facts) and episodic (events). Implicit: procedural, priming, conditioning.
  • H.M. lost his hippocampus and could not form new explicit memories, yet still learned skills.
  • Ebbinghaus's forgetting curve drops fast, then levels off. Spaced review flattens it.
  • Loftus's misinformation effect shows why eyewitness confidence can mislead.

Read Chapter 7 ▶

Chapter 8Thinking, Language and Intelligence

Concepts are the mind's groups. A prototype is the best example. An algorithm is a slow, sure method. A heuristic is a fast shortcut that sometimes fails. Tversky and Kahneman mapped how heuristics bend our choices.

  • Availability: judging by what comes to mind easily. Representativeness: judging by how well something fits a type.
  • Confirmation bias, framing, mental set, and functional fixedness block good thinking.
  • Language builds from phonemes to morphemes to grammar. Skinner said it is learned. Chomsky said we are born ready.
  • Intelligence: Spearman's g, Gardner's multiple intelligences, Sternberg's triarchic theory, emotional intelligence.
  • IQ tests: Binet, Terman, Wechsler. Scores form a normal curve. A test must be reliable and valid.

Read Chapter 8 ▶

Chapter 9Lifespan Development

Development asks three questions. How do nature and nurture combine? Is change smooth or in stages? Do early traits last? Cross-sectional studies compare age groups at once. Longitudinal studies follow the same people for years.

  • Prenatal stages: germinal, embryonic, fetal. Teratogens do the most harm in a critical period.
  • Piaget: sensorimotor, preoperational, concrete operational, formal operational. Vygotsky added the social side.
  • Harlow: contact comfort beats food. Bowlby: attachment. Ainsworth: the Strange Situation and secure or insecure styles.
  • Erikson: eight psychosocial stages, from trust to integrity.
  • Crystallized knowledge holds up with age. Fluid speed declines.

Read Chapter 9 ▶

Chapter 10Motivation and Emotion

Motivation gives behavior energy and direction. Theories run from instinct to drive-reduction (staying in balance, or homeostasis) to arousal to incentives. Maslow's hierarchy stacks needs from body needs up to self-actualization.

  • Hunger: the hypothalamus, plus ghrelin (raises hunger) and leptin (lowers it).
  • Yerkes-Dodson: best performance at medium arousal. A rough rule, not an exact law.
  • Emotion theories: James-Lange, Cannon-Bard, Schachter-Singer two-factor, and Lazarus's appraisal.
  • Ekman: basic facial expressions are recognized across cultures. Display rules vary.
  • The amygdala has a fast path that can fire before conscious thought.

Read Chapter 10 ▶

Chapter 11Personality

Personality is a person's usual, lasting way of thinking, feeling, and acting. Freud placed it in the unconscious, split into the id, ego, and superego. Defense mechanisms protect the ego from anxiety.

  • Neo-Freudians: Jung, Adler, Horney, Erikson. They stressed social forces.
  • Humanists: Rogers (self-concept, unconditional positive regard) and Maslow.
  • Trait theory: the Big Five, or OCEAN. It is the best-tested model.
  • Social-cognitive: reciprocal determinism (Bandura), locus of control (Rotter), self-efficacy.
  • Tests: objective inventories like the MMPI; projective tests like the Rorschach and TAT, which are less reliable.

Read Chapter 11 ▶

Chapter 12Social Psychology

Attribution explains behavior by the person or the situation. The fundamental attribution error over-blames the person. When actions clash with attitudes, we feel cognitive dissonance, and we often change the attitude.

  • Persuasion: the central route (strong arguments, lasts) and the peripheral route (surface cues, fades).
  • Asch: conformity to a group. Milgram: about 65% obeyed in one version.
  • Group effects: social facilitation, social loafing, deindividuation, groupthink, group polarization.
  • Stereotype = belief. Prejudice = feeling. Discrimination = action.
  • Bystander effect: more onlookers, less help, through diffusion of responsibility.

Read Chapter 12 ▶

Chapter 13Stress, Health and Coping

Stress is a process. A stressor meets your appraisal and sets off a stress response. Lazarus split appraisal in two. Primary asks, “Is this a threat?” Secondary asks, “Can I cope?”

  • Cannon's fight-or-flight response runs on the sympathetic system and adrenaline.
  • Selye's GAS: alarm, resistance, exhaustion.
  • The slow HPA axis releases cortisol. Long-term, it builds allostatic load.
  • Stress harms the heart (hostility is the risky part) and the immune system (Kiecolt-Glaser, Cohen).
  • Problem-focused coping fits what you can control. Emotion-focused fits what you cannot.
  • Social support is one of the strongest buffers we know.

Read Chapter 13 ▶

Chapter 14Psychological Disorders and Therapy

A pattern counts as a disorder when the four Ds are weighed together: dysfunction, distress, deviance, and danger. The DSM-5-TR gives shared rules for each diagnosis. Having two or more at once, called comorbidity, is common.

  • Anxiety disorders are the most common. OCD and PTSD have their own DSM chapters.
  • Mood: major depressive disorder and bipolar disorder. Psychotic: schizophrenia, with positive and negative symptoms.
  • Models: diathesis-stress and biopsychosocial.
  • Therapies: psychodynamic, humanistic, behavioral, cognitive and CBT.
  • Biomedical: SSRIs, antipsychotics, lithium, ECT, TMS.
  • The therapeutic alliance predicts success across all kinds of therapy.

Read Chapter 14 ▶

Part 3 · Across chaptersCompare tables

Final exams love questions that cross chapters. These tables line up ideas that live far apart in the book. Cover the right side of each table and rebuild it from memory. Then check.

The major theorists and what each explained

PersonChWhat they explainedKey idea or study
Wilhelm Wundt1Psychology as a lab scienceFirst lab, Leipzig, 1879; introspection
William James1, 10What the mind is forFunctionalism; the James-Lange theory of emotion
Sigmund Freud1, 4, 11, 14Hidden motivesThe unconscious; id, ego, superego; dream wishes; psychoanalysis
Ivan Pavlov6Learning by pairingClassical conditioning in dogs
John B. Watson1, 6Behavior, not mindFounded behaviorism, 1913; Little Albert, 1920
B. F. Skinner6, 8Learning by consequencesOperant conditioning; schedules; language as learned
Albert Bandura6, 11, 12Learning by watchingBobo doll; self-efficacy; reciprocal determinism
Roger Sperry3What each hemisphere doesSplit-brain studies; Nobel Prize, 1981
Hermann Ebbinghaus7How fast we forgetThe forgetting curve
Elizabeth Loftus7How memory gets rewrittenThe misinformation effect
Tversky and Kahneman8Why judgment goes wrongHeuristics and biases; framing
Noam Chomsky8How children get languageAn inborn readiness for grammar
Spearman, Gardner, Sternberg8What intelligence isg; multiple intelligences; triarchic theory
Jean Piaget9How thinking growsFour stages; object permanence; conservation
Lev Vygotsky9The social side of thinkingLearning with help from others
Harlow, Bowlby, Ainsworth9How bonds formContact comfort; attachment; the Strange Situation
Erik Erikson9, 11Growth across the whole lifeEight psychosocial stages
Abraham Maslow10, 11Which needs come firstHierarchy of needs; self-actualization
Paul Ekman10Faces of emotionBasic expressions recognized across cultures
Schachter and Singer10How we label arousalTwo-factor theory of emotion
Richard Lazarus10, 13Why the same event feels differentAppraisal; primary and secondary appraisal
Carl Rogers11, 14Growth and the selfUnconditional positive regard; client-centered therapy
Julian Rotter11Who is in controlInternal and external locus of control
Solomon Asch12Going along with the groupThe line-judging study
Stanley Milgram12Obeying authorityThe shock study; about 65% in one version
Latané and Darley12Why crowds fail to helpThe bystander effect
Leon Festinger12Actions changing beliefsCognitive dissonance; the one-dollar study
Hans Selye13The body's stress patternGeneral adaptation syndrome
Aaron Beck, Albert Ellis14Thoughts that feed distressCognitive therapy; REBT; the roots of CBT
Joseph Wolpe14Unlearning fearSystematic desensitization

The research methods: what each can and cannot show

MethodWhat it can showWhat it cannot showCourse example
Case studyRich detail on one person; rare casesCause; whether it applies to othersPhineas Gage; H.M.
Naturalistic observationReal behavior in real settingsCause; why people do itWatching children at play
SurveyAttitudes and habits of many people fastCause; honest answers are not certainSleep habits poll with a random sample
Correlational studyWhether two things move together, and how stronglyWhich causes which; third variablesStress and colds; IQ in twins
ExperimentCause and effectSome questions are unethical to testBandura's Bobo doll; Schachter-Singer
Cross-sectionalAge differences, quicklyChange in one person; open to cohort effectsMemory in 20, 50 and 80 year olds
LongitudinalHow the same people changeFast results; it suffers from attritionFollowing children into adulthood
Twin and adoption studiesHow much genes and experience add to differencesThe share of one person's trait from genesHeritability of IQ and the Big Five
ReplicationWhether a finding is realAnything new on its ownThe pen study; Milgram's 2009 partial repeat

The kinds of learning

KindWhat is linkedKey nameBehavior typeExample
HabituationNothing; one stimulus repeatsNot tied to one nameResponse fadesYou stop hearing the fridge hum
SensitizationNothing; one strong stimulus repeatsNot tied to one nameResponse growsJumpier after a scare
Classical conditioningTwo stimuliPavlov, WatsonAutomatic, reflex-likeA dental drill sound makes you tense
Operant conditioningA behavior and its consequenceThorndike, SkinnerVoluntaryStudying more after a good grade
Observational learningA model's act and its outcomeBanduraVoluntary, copiedA child copies a sibling's swing

Reinforcement and punishment, drawn

Two questions sort every consequence 1. Was something added or taken away? 2. Did the behavior go up or down? ADD a stimulus = positive (+) REMOVE a stimulus = negative (−) Behavior goes UP= reinforcement Behavior goes DOWN= punishment Positive reinforcement Add something good Praise for finishing homework,so homework happens more Negative reinforcement Take away something bad Buckling up stops the car's beeping,so buckling up happens more Positive punishment Add something bad A speeding ticket,so speeding happens less Negative punishment Take away something good Losing phone time after curfew,so breaking curfew happens less
Figure 5. “Positive” and “negative” mean added or removed, not good or bad. If the behavior goes up, it is reinforcement, every time.

The schedules of reinforcement

ScheduleReward comes afterResponse patternExample
Fixed ratio (FR)A set number of responsesHigh rate, short pause after each rewardPaid per 10 boxes packed
Variable ratio (VR)An unpredictable numberHighest, steadiest rate; hardest to extinguishSlot machines
Fixed interval (FI)The first response after a set timeScalloped: slow, then a rush near the timeCramming before a weekly quiz
Variable interval (VI)The first response after an unpredictable timeSlow, steady rateChecking for a text reply

The memory systems

The multi-store model, with long-term memory opened up Attention gets you in the door. Encoding gets you into storage. Retrieval gets you back out. Sensessights, sounds Sensory memory huge capacity iconic: under 1 second echoic: a few seconds Short-term / working about 4 chunks about 20 seconds without rehearsal Long-term memory no known limit can last a lifetime attention encoding retrieval unattended: lost unrehearsed: fades Explicit (you can say it) Semantic: facts. Paris is in France. Episodic: events. Your last birthday. hippocampus forms them; cortex stores them H.M. lost the ability to form new ones Implicit (you show it) Procedural: skills Priming Conditioning cerebellum, amygdala What helps encoding stick Deep, meaningful processing Spaced practice, not cramming Self-testing and self-reference Chunking into meaningful groups
Figure 6. The memory systems. H.M. is the proof that explicit and implicit memory are separate: he kept learning skills he could not remember practicing.
SystemCapacityHow longBrain area or clue
Iconic (sensory, sight)Very largeUnder 1 secondSperling's letter grid
Echoic (sensory, sound)Very largeA few seconds“What did you say?” then you replay it
Short-term / workingAbout 4 chunksAbout 20 seconds without rehearsalFrontal lobe; works on the material
Semantic (explicit)No known limitCan last for lifeHippocampus forms; cortex stores
Episodic (explicit)No known limitCan last for lifeHippocampus; amygdala adds emotion
Procedural (implicit)No known limitVery lastingCerebellum and basal ganglia
Priming (implicit)Not measured in chunksShort to longOne exposure eases the next

The theories of emotion, drawn

One event, four orders: a dog growls at you The theories agree on the parts. They disagree about the order. James-Langebody first Dog growls Heart pounds, you tremble Fear = noticing your body's change Cannon-Bardboth at once Dog growls Thalamus relays it Body arousal Felt fear, at the same time Schachter-Singertwo factors:arousal + label Dog growls Arousal, plus the label“a growling dog = danger” Fear = arousal read through the situation Lazarusappraisal first Dog growls Judged: “a threat to me” Arousal and fear both follow
Figure 7. The emotion theories. Zajonc and LeDoux pushed back on Lazarus: some fear fires through the amygdala before any conscious thought.
TheoryCore claimClue words in a questionMain problem
James-LangeWe feel afraid because we tremble“noticed her heart racing, then felt…”Many emotions share similar body states
Cannon-BardArousal and feeling happen at once, separately“at the same time,” thalamusBody feedback does shape feeling somewhat
Schachter-SingerArousal plus a cognitive label“looked around to figure out why”Later studies support it only partly
Lazarus appraisalA judgment comes first“decided it was a threat”Some fear fires before thought (LeDoux)
Facial feedbackMaking a face can shift the feeling“held a pen in her teeth”The famous pen study did not replicate

The theories of motivation

TheoryWhat drives usBest at explainingWeak spot
InstinctInborn, fixed patternsAnimal behaviorNames behaviors more than it explains them
Drive-reductionNeeds create drives; we act to restore homeostasisHunger, thirstWhy we seek thrills when all needs are met
ArousalWe seek a best level of stimulationCuriosity; Yerkes-DodsonThe best level differs a lot by person
IncentiveOutside rewards pull usWorking for pay or gradesLeaves out inner drives
Maslow's hierarchyNeeds in layers, lower ones firstPriorities in hard timesThe order is not strict for everyone

The stage theories, side by side

AgePiaget (thinking)Erikson (social growth)Freud (psychosexual)
Birth to 1Sensorimotor: object permanenceTrust vs. mistrustOral
1 to 3Sensorimotor, then preoperationalAutonomy vs. shame and doubtAnal
3 to 6Preoperational: egocentrism; no conservation yetInitiative vs. guiltPhallic
6 to pubertyConcrete operational (about 7 to 11): conservationIndustry vs. inferiorityLatency
TeensFormal operational (12 and up): abstract thoughtIdentity vs. role confusionGenital
Young adultNo stageIntimacy vs. isolationNo stage
Middle adultNo stageGenerativity vs. stagnationNo stage
Late adultNo stageIntegrity vs. despairNo stage

The seven perspectives applied to one behavior

Here is the scene. A teen named Dario shoves a classmate in the hallway. Each lens offers a different “why.” On the exam, find the cause word, then match it to its lens.

PerspectiveIts explanation of the shoveCause word to spotLinked chapters
BiologicalA fast amygdala response and high arousalbrain, hormones, genes3, 10
EvolutionaryDefending status helped ancestors survivesurvival, ancestors1, 12
PsychodynamicHidden anger at a parent, displaced onto a peerunconscious, defense11, 14
BehavioralPast shoves got him respect, so the habit was reinforcedreward, learned6
CognitiveHe read a bump as a deliberate insultinterpreted, believed7, 8, 12
HumanisticAn unmet need for esteem and belongingself-worth, growth10, 11
SocioculturalA peer group that expects toughness from boysgroup, norms, culture12

The therapies

ApproachKey namesWhere the problem comes fromWhat therapy does
PsychodynamicFreudUnconscious conflicts from early lifeBuilds insight through free association and interpretation
HumanisticRogersBlocked growth; a self-concept out of step with experienceClient-centered warmth, empathy, unconditional positive regard
BehavioralWolpe, SkinnerLearned responsesExposure, systematic desensitization, reinforcement
Cognitive and CBTBeck, EllisDistorted, unhelpful thoughtsSpots and tests those thoughts; adds behavior change
BiomedicalPhysicians, often psychiatristsBrain chemistry and functionSSRIs, antipsychotics, lithium, ECT, TMS

The pairs that get mixed up most

ThisIs notThe difference
Negative reinforcementPunishmentReinforcement makes behavior go up, even when something is removed
ReliableValidConsistent results versus measuring the right thing
CorrelationCausationMoving together versus one making the other happen
Independent variableDependent variableWhat the researcher changes versus what is measured
Random sampleRandom assignmentWho is in the study versus which group each person joins
SensationPerceptionPicking up the signal versus making sense of it
Proactive interferenceRetroactive interferenceOld blocks new versus new blocks old
RecallRecognitionPulling it up yourself versus picking it from options
AlgorithmHeuristicSlow and sure versus fast and error-prone
Crystallized intelligenceFluid intelligenceStored knowledge versus fast, new problem solving
SympatheticParasympatheticFight-or-flight versus rest-and-digest
AgonistAntagonistBoosts a neurotransmitter versus blocks it
StereotypePrejudice; discriminationA belief versus a feeling versus an action
ConformityObedienceGoing along with peers versus following an authority
Problem-focused copingEmotion-focused copingChanging the problem versus changing how you feel about it
Positive symptomsNegative symptomsSomething added, like hallucinations, versus something missing, like flat emotion
PsychologistPsychiatristPsychiatrists are medical doctors who can prescribe

Part 4 · Exam-style practiceWorked examples

Most final exam items are short scenarios. The trick is to slow down and name what the question is really asking. Each example below walks through the thinking, one step at a time.

Example 1 · Chapter 2 · can this study show cause?

“Researchers found that students who drink more coffee earn higher grades. They say coffee improves grades.” Is the claim justified?

Step 1 · name the methodNo one was assigned to drink coffee. The researchers only measured two things. That is a correlation.

Step 2 · look for other explanationsA third variable could drive both. Students who study late may drink more coffee and also study more. The direction could also run backward.

Step 3 · answerNo. A correlation cannot show cause. To test it, randomly assign students to coffee or a decaf placebo, keep both groups blind, and compare grades.

Example 2 · Chapter 6 · label the parts of classical conditioning

“Each time Mia gets a shot, the nurse first wipes her arm with a cold swab. Now the cold swab alone makes Mia tense up.”

Step 1 · find the reflexWhat causes tensing with no learning? The shot. So the shot is the US, and tensing at the shot is the UR.

Step 2 · find what was pairedThe swab came just before the shot each time. So the swab is now the CS.

Step 3 · answerTensing at the swab alone is the CR. If Mia then tenses at any cold touch, that is generalization.

Example 3 · Chapter 6 · reinforcement or punishment?

“Leo has a headache. He takes a pain reliever, and the pain goes away. Next time he has a headache, he takes it sooner.”

Step 1 · did the behavior go up or down?Up. He takes the pill sooner and more readily. So this is reinforcement.

Step 2 · was something added or removed?The pain was removed. Removed means negative.

Step 3 · answerNegative reinforcement. It is not punishment, because the behavior went up.

Example 4 · Chapter 7 · which kind of interference?

“Ana learned Spanish in high school. Now she is learning Italian. When she tries to say an Italian word, the Spanish word pops out.”

Step 1 · which memory is old, and which is new?Spanish is old. Italian is new.

Step 2 · which one is blocked?The new one, Italian, is being blocked by the old one.

Step 3 · answerProactive interference. Old blocks new. Think “pro” means forward: the old memory pushes forward into the new one.

Example 5 · Chapter 10 · which emotion theory?

“After a hard run, Kai's heart is racing. A friend says something kind. Kai feels a rush of strong affection and puzzles over why it felt so intense.”

Step 1 · find the arousalThe arousal came from the run, not from the friend.

Step 2 · find the labelKai pinned the arousal on the nearest cause, the kind words.

Step 3 · answerSchachter-Singer two-factor theory. Arousal plus a label from the situation equals the emotion. Here the label went to the wrong source.

Example 6 · Chapter 12 · person or situation?

“A driver cuts you off. You think, ‘What a selfish person.’ Later you cut someone off and think, ‘I was late for a job interview.’”

Step 1 · how did you explain the other driver?By the person. That is the fundamental attribution error.

Step 2 · how did you explain yourself?By the situation. Explaining others by person and yourself by situation is the actor-observer effect.

Step 3 · answerBoth biases appear. If you also took credit for your wins and blamed bad luck for your losses, that would be the self-serving bias.

Example 7 · Chapters 9 and 2 · which design, and what can go wrong?

“A team tests memory in 25-year-olds and 75-year-olds this year. The older group scores lower. The team concludes that memory declines with age.”

Step 1 · name the designDifferent ages tested at one time is cross-sectional.

Step 2 · find the riskThe groups grew up in different times, with different schooling and health care. That is a cohort effect.

Step 3 · answerThe conclusion may be too strong. A longitudinal design, following the same people, would show true change. Its own risk is attrition, as people drop out.

Example 8 · Chapter 13 · which coping style fits?

“Jordan's grandmother has died. Jordan also has a big project due that has not been started.” Which coping style fits each stressor?

Step 1 · can the stressor be changed?The loss cannot be changed. The project can.

Step 2 · match the styleFor what you cannot change, emotion-focused coping helps: grieving, leaning on friends, reframing. For what you can change, problem-focused coping helps: a plan and a start.

Step 3 · answerEmotion-focused for the loss, problem-focused for the project. Avoiding both would backfire. Social support helps with both.

Example 9 · Chapter 14 · which therapy is this?

“A therapist helps a client notice the thought ‘If I make one mistake, I am a total failure.’ Together they test it against the facts and plan small steps to try.”

Step 1 · what is the target?A distorted thought. That points to the cognitive approach.

Step 2 · is behavior also changed?Yes, through small planned steps. That adds the behavioral side.

Step 3 · answerCognitive behavioral therapy (CBT), rooted in the work of Beck and Ellis. Insight into childhood would point to psychodynamic therapy. Warm, nondirective listening would point to Rogers.

Part 5 · Watch outCommon traps

The traps that cost the most points
  • Calling negative reinforcement punishment. Ask only, “Did the behavior go up?” If yes, it is reinforcement.
  • Reading a correlation as a cause. Unless people were randomly assigned, no cause can be claimed.
  • Mixing up random sampling and random assignment. Sampling decides who is in. Assignment decides which group.
  • Treating heritability as a personal number. A heritability of 0.5 does not mean half of your IQ came from genes. It is about differences in a group.
  • Thinking a fact is wrong because it is strong. Milgram's 65% is real, but it came from one version. Rates ranged from almost none to more than 90%.
  • Quoting the Stanford Prison Experiment as solid proof. It had no control group, and guards were coached. Treat it as a story.
  • Believing the brain myths. We use all of our brain. Learning styles and “left-brained” people are myths.
  • Calling schizophrenia “split personality.” It is a psychotic disorder. It is not the same as dissociative identity disorder.
  • Mixing up the hippocampus and the amygdala. The hippocampus forms new explicit memories. The amygdala drives fear and adds emotion to memories.
  • Mixing up REM and N3. N3 is deep, slow-wave sleep, mostly early in the night. REM has vivid dreams and comes mostly late.
  • Swapping proactive and retroactive interference. Proactive: old blocks new. Retroactive: new blocks old.
  • Swapping James-Lange and Cannon-Bard. James-Lange: body first, then feeling. Cannon-Bard: both at the same time.
  • Mixing up Piaget and Erikson. Piaget is about thinking. Erikson is about social growth across the whole life.
  • Calling all stress bad. Short bursts of cortisol help. The harm comes when stress is chronic.
  • Calling a single odd behavior a disorder. The four Ds are weighed together, and dysfunction matters most.
  • Picking the answer that says the most. On methods questions, the best answer claims no more than the evidence allows.

Part 6 · Thirty itemsCumulative self-test

Answer each one out loud or on paper before you reveal it. Then read the reason, even when you were right. Items run in chapter order, with a few that cross chapters.

1. A study reports that 40% of adults nap on weekends. Which goal of psychology is this?
Describe. It reports what happens. It gives no cause, makes no forecast, and tries to change nothing.
2. Which school asked what the mind is made of, and which asked what it is for?
Structuralism asked what it is made of; functionalism asked what it is for. Titchener led the first. William James led the second, shaped by Darwin.
3. In a test of a new sleep app, people are randomly put in an app group or a no-app group. Hours of sleep are measured. Name the independent and dependent variables.
IV: using the app or not. DV: hours of sleep. The researcher changes the IV and measures the DV. Random assignment is what lets this show cause.
4. A correlation of r = −0.80 is found between screen time and sleep. What does it tell you?
A strong negative link: more screen time goes with less sleep. The minus sign gives the direction. The size, 0.80, gives the strength. It still does not prove that screens cause poor sleep.
5. Why do researchers use a double-blind design?
So that neither participants nor researchers know who got the real treatment. This blocks placebo effects and researcher bias from shaping the results.
6. A drug blocks the reuptake of serotonin. Is it an agonist or an antagonist?
An agonist. Blocking reuptake leaves more serotonin in the synapse, so it boosts serotonin's effect. That is how SSRIs work.
7. Your heart pounds and your pupils widen when a car swerves at you. Which division of the nervous system is in charge?
The sympathetic division. It runs fight-or-flight. The parasympathetic division calms the body after.
8. Damage to which lobe would most likely harm vision?
The occipital lobe. It sits at the back of the brain and handles vision. The temporal lobe handles hearing.
9. Late in the night, a sleeper has long periods of vivid dreams while the body cannot move. Which sleep stage is this?
REM sleep. REM periods grow longer as the night goes on. Deep N3 sleep comes mostly early.
10. Alcohol and benzodiazepines belong to which drug family, and how do they act?
Depressants, which mainly boost GABA. They slow the central nervous system. Mixing them is dangerous because both can slow breathing.
11. You can tell a 1-pound weight from a 1.1-pound weight, but not a 10-pound weight from a 10.1-pound one. What explains this?
Weber's law. The change you can notice is a fixed share of the original, not a fixed amount. At 10 pounds you would need about a full pound.
12. Seeing a red, white and blue flag afterimage after staring at a green, black and yellow one is best explained by which theory?
Opponent-process theory. Color cells work in pairs: red and green, blue and yellow, black and white. Tiring one side lets the other side show.
13. A dog learned to drool at a bell. The bell is then rung many times with no food, and drooling stops. A week later, the bell brings a little drool back. Name both processes.
Extinction, then spontaneous recovery. Extinction weakens the response but does not erase the learning. That is why it can come back after a rest.
14. Which schedule makes a behavior hardest to extinguish, and what is an example?
Variable ratio, as in a slot machine. Because the next reward could always be one response away, people keep going long after rewards stop.
15. In Bandura's Bobo doll study, what did children learn, and how?
They learned aggressive acts by watching an adult model. No reward was given to the children. Learning took place through attention, retention, reproduction, and motivation.
16. In a list of 20 words, which ones are people most likely to recall, and why?
The first few and the last few. This is the serial position effect. Early words get more rehearsal and reach long-term memory. Late words are still in short-term memory.
17. After brain surgery, H.M. could not form new memories of facts or events, yet he improved at a mirror-drawing task. What does this show?
Explicit and implicit memory are separate systems. His hippocampus was damaged, which blocks new explicit memories. Procedural memory relies on other areas, such as the cerebellum.
18. Witnesses who heard the word “smashed” later remembered broken glass that was never there. What is this called?
The misinformation effect, from Loftus. Information given after an event can change the memory of it. Memory is rebuilt each time, not replayed.
19. After seeing news of a plane crash, a person feels flying is more dangerous than driving. Which heuristic is at work?
The availability heuristic. Vivid examples come to mind easily, so they seem more common than they are. Driving is far riskier per mile.
20. A scale reads 5 pounds too heavy every single time. Is it reliable, valid, both, or neither?
Reliable but not valid. It is consistent, so it is reliable. It does not give the true weight, so it is not valid. The same logic applies to IQ and personality tests.
21. A 4-year-old says a tall, thin glass holds more juice than a short, wide one, even after watching the same juice poured between them. Which Piaget stage, and what is missing?
Preoperational; the child lacks conservation. Conservation, knowing amount stays the same when shape changes, arrives in the concrete operational stage.
22. In the Strange Situation, a toddler is upset when the parent leaves and is quickly comforted on return. Which attachment style is this?
Secure attachment. The parent works as a secure base. Ainsworth built the Strange Situation to sort these styles.
23. Ghrelin and leptin have opposite effects on hunger. Which does which?
Ghrelin raises hunger; leptin lowers it. Ghrelin comes mostly from the stomach. Leptin comes from fat cells. Both signal the hypothalamus.
24. Which theory says we feel afraid because we notice our body trembling?
The James-Lange theory. The body reacts first, and the feeling is our awareness of that reaction. Cannon-Bard said both happen at once.
25. A person scores high on organization, discipline, and dependability. Which Big Five trait is high?
Conscientiousness. It is the C in OCEAN. The others are openness, extraversion, agreeableness, and neuroticism.
26. A student says, “My grade depends on how hard I study.” Which kind of locus of control is this?
Internal locus of control. Rotter's term for believing your own actions shape outcomes. Blaming luck or the teacher would be external.
27. Someone collapses on a busy sidewalk and dozens of people walk past. What explains this, and what is the main cause?
The bystander effect, driven by diffusion of responsibility. Each person assumes someone else will act. Pointing at one person and asking for help breaks it.
28. Name the three stages of Selye's general adaptation syndrome in order.
Alarm, resistance, exhaustion. The body first mobilizes, then holds steady at a cost, then wears down if stress goes on too long.
29. A person with schizophrenia hears voices and also shows little emotion. Which is a positive symptom and which is negative?
Hearing voices is positive; little emotion is negative. Positive means something added to normal experience. Negative means something taken away.
30. Across many kinds of therapy, which single factor best predicts a good outcome?
The therapeutic alliance. A trusting, working bond between client and therapist matters in every approach. It ties back to Rogers's focus on warmth and empathy.

Part 7 · Night beforeCram sheet

Definitions worth having word-perfect

TermMeaning
PsychologyThe scientific study of mind and behavior
HypothesisA specific, testable, falsifiable prediction
Operational definitionExactly how a variable is measured
HeritabilityThe share of differences in a group linked to genetic differences
Action potentialAn all-or-none electrical signal down the axon
TransductionTurning outside energy into nerve signals
LearningA lasting change in behavior or knowledge from experience
EncodingGetting information into memory
HeuristicA fast mental shortcut that can cause errors
HomeostasisThe body's drive to stay in balance
PersonalityA person's usual, lasting way of thinking, feeling, and acting
Fundamental attribution errorOver-blaming the person and under-weighing the situation
Cognitive dissonanceDiscomfort when actions and beliefs clash
AppraisalJudging whether an event is a threat and whether you can cope
Diathesis-stressA disorder starts when a weak spot meets stress

Numbers and dates to know cold

NumberWhat it marks
1879Wundt's lab in Leipzig
1913Watson launches behaviorism
1920Little Albert
1961Bandura's Bobo doll study
1971Stanford Prison Experiment (now seen as flawed)
1979The Belmont Report on research ethics
2010sThe replication crisis
−1 to +1The range of r
About 4 chunksShort-term memory span (Miller's old figure: 7 plus or minus 2)
About 90 minutesOne sleep cycle
About 24 hoursOne circadian cycle
100 and 15Mean and standard deviation of IQ scores
0.4 to 0.5, then 0.6 to 0.8IQ heritability in childhood, then adulthood
About 65%Full obedience in one version of Milgram's study

Sequences to know in order

SequenceOrder
Scientific methodObserve, hypothesize, test, revise, replicate
Neuron signalDendrites, cell body, axon, terminals, synapse
SleepN1, N2, N3, back up, REM; repeat about every 90 minutes
MemorySensory, short-term, long-term; encode, store, retrieve
PrenatalGerminal, embryonic, fetal
PiagetSensorimotor, preoperational, concrete, formal
MaslowPhysiological, safety, belonging, esteem, self-actualization
Selye's GASAlarm, resistance, exhaustion
Bandura's modelingAttention, retention, reproduction, motivation
LanguagePhonemes, morphemes, words, grammar

One line per chapter

ChIf you remember one thing
1Psychology is a science because it tests claims; seven lenses work together
2Only a randomized experiment shows cause; replication earns trust
3Neurons fire all-or-none; drugs act as agonists or antagonists
4The SCN sets the clock; deep sleep early, REM late
5Sensation detects; perception builds meaning
6Up means reinforcement; down means punishment
7Memory is rebuilt each time, so it can be wrong
8Shortcuts are fast but biased; reliable is not valid
9Nature and nurture together; stages for thinking and social growth
10Emotion theories differ on the order of body, thought, and feeling
11The Big Five describe; person and situation together predict
12Situations are more powerful than we think
13Stress depends on appraisal; support is a strong buffer
14Weigh the four Ds; the therapeutic alliance matters in every therapy

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