A researcher interested in studying how friendship changes with age asks students in first-, third-, fifth-, seventh-, ninth-, and eleventh-grades to complete a questionnaire. What type of research design is this researcher using?
A) sequential-cohort
B) longitudinal
C) cross-sectional
D) age cohort

Question

Quizplus · Accepted Answer

Cross-sectional designs compare individuals of different ages at one point in time. In this example, students of different ages (as signified by their different grades) are compared to one another at one point in time (the time that the questionnaire is completed).

A Researcher Interested in Studying How Friendship Changes with Age