A study by Steadman and colleagues found that the largest category of crimes for which people were acquitted on grounds of insanity was:

The main purpose of infant attachment behaviors is to

a. keep its mother close. c. keep away strangers. b. survive. d. attract the mother to the child.

What is Cohen’s d when M1 = 23.68, M2 = 11.37, and the sample sd = 5.04?

a. 5.30 b. 1.02 c. 2.44 d. 0.90