If planes q and r are parallel planes. plane q contains line a. plane r contains line b. a third plane could be drawn which contains both lines a and b, then

Kilgore trout creates a new scale to diagnose depression. however, his scale only assesses one symptom of depression while ignoring others. which of the following is his new scale most likely lacking? a) test-retest reliability b) discriminant validity c) criterion validity d) alternate-forms reliability e) content validity f) none of the above