Tom claims that since the exponent is 4, you just need to add 4 extra zeros after the last number to get your answer. Which of the following expressions refute his claim? Select TWO that are correct. 2.1×104

B
780×104

C
5×104

D
72÷104

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