The Results of Testing by the Yerkes Research Group ____

Multiple Choice

The results of testing by the Yerkes research group ____.​

A) ​precluded retarded men from serving in World War I
B) established the criterion for admission to Officer Candidate School
C) ​separated the less intelligent into the infantry because they were considered more expendable
D) showed that testing could be used successfully in criterion development
E) had no impact on recruitment and selection or the war effort as a whole