Dr. Pena observes the same participants in each of three groups. This sample is called a(n) ______.

Laboratory-raised monkeys watched other monkeys show a fear response to snakes. After one

observation, the watching monkeys A) showed no fear of snakes B) gave onlya small reaction C) were less afraid of snakes D) learned a fear of snakes

In regards to what kind of face people see as beautiful, ______ prefer ultrafeminine female faces with a soft, somewhat girlish look

a. neither males nor females b. males, but not females, c. females, but not males, d. both males and females