Walter drew a scale drawing of a house. He used the scale 3 centimeters = 9 meters. What scale factor does the drawing use? Simplify your answer and write it as a fraction.

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