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Human Development · Chapter 1
Cross-Sectional, Longitudinal & Sequential
To study how people change across a lifespan, researchers slice the same grid of
birth cohorts
and
testing years
in three different ways. Pick a design to see which participants it follows — and what it can and can't reveal.
Pick a research design
not sampled
in this design
Three research designs
choose one to begin
Cross-Sectional
ages at once
Longitudinal
one group, over time
Sequential
both combined
Duration
—
Who is followed
—
Main limitation
—