A psychologist is interested in how early childhood nutrition affects height.To research this subject he tracks the nutritional consumption and growth of the same group of children from age 1 through age 6.This research technique is utilizing a ________ design.
A)time-lag
B)longitudinal
C)correlational
D)cross-sectional

Question

Quizplus · Accepted Answer

A longitudinal design involves following the same group of individuals over a period of time and observing changes or developments. In this case, the psychologist is tracking the same group of children from age 1 to age 6, which fits the definition of a longitudinal design. Choice A, time-lag design, is not appropriate as it involves comparing different groups at different points in time. Choice C, correlational design, would be focused on examining the relationship between two variables and does not involve following a group of individuals over time. Choice D, cross-sectional design, would involve comparing different groups of individuals of different ages but at the same point in time, rather than following the same group over time.

A Psychologist Is Interested in How Early Childhood Nutrition Affects