In the ______ design, each participant is tested only once, which reduces the chance of attrition.
A) longitudinal
B) cross-sectional
C) cohort-sequential
D) causal

Question

Quizplus · Accepted Answer

In a cross-sectional design, participants from different age groups are tested at the same time. Since each participant is only tested once, there is no opportunity for attrition to occur. In contrast, in a longitudinal design (choice A), participants are tested multiple times over a period of years, which increases the risk of attrition as individuals may drop out of the study over time. Cohort-sequential designs (choice C) also involve testing participants over a period of time, but involve testing different age groups at different points in time. Causal designs (choice D) are not related to attrition as they focus on establishing cause-and-effect relationships rather than tracking changes over time.

In the ______ Design, Each Participant Is Tested Only Once