A researcher who selects a sample of people of varying ages and studies them at one point in time is, by definition, using a ________ design in her study.
A) cohort
B) longitudinal
C) behavior genetics
D) cross-sectional

Question

A researcher who selects a sample of people of varying ages and studies them at one point in time is, by definition, using a ________ design in her study.
A) cohort
B) longitudinal 
C) behavior genetics
D) cross-sectional

Quizplus · Accepted Answer

A cross-sectional design is used when data is collected at a single point in time, often from a sample of individuals of different ages. This type of design allows researchers to compare different age groups at the same time, but does not allow for the examination of individual change over time.

A Researcher Who Selects a Sample of People of Varying