An experimental design for assessing age-related changes in which data are obtained from the same individuals at intervals over a long period is called a ____.
A)cross-sectional study
B)longitudinal study
C)correlational study
D)mixed longitudinal study

Question

Quizplus · Accepted Answer

A longitudinal study involves following the same group of individuals over an extended period and collecting data at multiple time points. This allows researchers to assess changes within each individual over time and is ideal for studying aging and development. A cross-sectional study involves comparing different groups of individuals at a single point in time, while a correlational study examines the relationships between variables without manipulating them. A mixed longitudinal study combines elements of both cross-sectional and longitudinal designs by following multiple age groups over time.

An Experimental Design for Assessing Age-Related Changes in Which Data