A researcher who selects a sample of people of varying ages and studies them at one point in time is,by definition,using the __________ method.
A)cohort
B)longitudinal
C)correlational
D)cross-sectional

Question

Quizplus · Accepted Answer

The cross-sectional method involves selecting a sample and studying them at one point in time. It is commonly used to study developmental changes across different age groups at the same time. Cohort studies involve selecting a group of people who share a common characteristic and studying them over a period of time. Longitudinal studies involve selecting a sample and following them over a period of time. Correlational studies involve measuring the relationship between two or more variables.

A Researcher Who Selects a Sample of People of Varying