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 infants 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

This research technique is following the same group of infants over a prolonged period of time, tracking their nutritional consumption and growth through age 1 to age 6. This is the definition of a longitudinal design. A time-lag design involves comparing different groups of individuals at different points in time. A correlational design examines the relationship between two variables. A cross-sectional design involves comparing different groups of individuals at the same point in time.

A Psychologist Is Interested in How Early Childhood Nutrition Affects