Dr. Ingram deliberately systematically manipulated the number of items on a list and later measured participants' recall of the items. Dr. Ingram conducted a(n) ___________ study.
A)correlational
B)observational
C)descriptive
D)experimental

Question

Quizplus · Accepted Answer

Dr. Ingram conducted an experimental study because she manipulated a variable (the number of items on a list) to see its effect on another variable (participants' recall), which is a hallmark of experimental research.

Dr Ingram Deliberately Systematically Manipulated the Number of Items on a List