A 10-year study of low-birth-weight babies is performed to determine if birth weight affects IQ and performance in elementary school. Children are identified in hospitals at birth and their performance is tracked until they are 10 years old. This type of study is a(n):
A) comparative experiment.
B) experiment with compounding variables.
C) observational study.
D) retrospective study.

Question

Quizplus · Accepted Answer

This type of study is observational, as the researchers are simply observing and tracking the performance of the low-birth-weight babies without manipulating any variables or control groups.

A 10-Year Study of Low-Birth-Weight Babies Is Performed to Determine