DrSingh Designs a Test He Believes Will Predict an Individual's

Multiple Choice

Dr.Singh designs a test he believes will predict an individual's ability to perform in managerial positions.When Dr.Singh administers his test to 100 managers at Aldor Corporation,he finds that some of the best managers do well on the test,but others do quite poorly.What should Dr.Singh conclude about his test

A)  It lacks criterion-related validity. 
B)  It is unreliable. 
C)  It lacks content validity. 
D)  It is not well standardized.