Introduction to Psychology 10th Edition by Rod Plotnik,Haig Kouyoumdjian

تمرين 3

Since sexual activity is not a behavior researchers can observe, research methods used to study sexual activity are limited to the (a) _____. Janet Rosenbaum at Harvard University asked more than 13,000 adolescents questions about their sexual histories and whether or not they had ever taken a virginity pledge. Overall, the results of this study show that adolescents' memories for sexual behaviors are often (b) _____.