Oabc is a tetrahedron and oa=a, ob=b, and oc=c. the point p and q are such that oa =ap and 2ob = bq. the point m is a midpoint of pq. find (i)ab (ii)pq (iii)cq (iv)qm (v)mb (vi)om in terms of a, b, and c.

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