Dr.Davis is planning a study on the effect of rewards on the academic achievement of young children.For his study,Dr.Davis decides to use white,male children from an upper-class neighborhood.Having taken an introductory psychology course,you can see that Dr.Davis is going to have some problems because he won't necessarily be able to apply his results to girls or to students of other demographics.This particular problem substantially weakens the ___________ of Dr.Davis's study.

Question

Quizplus · Accepted Answer

External validity refers to the extent to which study findings can be generalized to populations other than the one studied. Dr. Davis's study lacks external validity because he has selected a very narrow sample group (white, male children from an upper-class neighborhood) and will not necessarily be able to apply his results to other demographics, such as girls or children from lower-income neighborhoods.

DrDavis Is Planning a Study on the Effect of Rewards