Janet uses a hormonal method of contraception. Her fiancé uses a barrier method when they make love. Based on this information, which of the following statements is true?
a) Janet is using a diaphragm. Her fiancé is using a condom.
b) Janet is using the pill. Her fiancé is using a condom.
c) Janet is using a diaphragm. Her fiancé has had a vasectomy.
d) Janet is using the pill. Her fiancé has had a vasectomy.
ANS: B, The pill is a hormonal method of birth control. The male barrier method is the condom.
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On a fixed-interval schedule, reinforcement is given _______
a) after a set amount of time has passed b) after randomly varying amounts of time have passed c) after a set number of responses have been made d) after a varying number of responses have been made
In a very unusual study of human visual perception, a Japanese psychologists asked students to wear glasses that reversed their visual fields. After several days,
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