Two groups of volunteers are involved in an experiment to test the effects of a new drug for treating insomnia. One group of participants is given the drug;
the other group is given a pill that contains no medication but looks exactly like the one that contains the drug. What term is used to designate the participants who were given the "false" pill?
a) normal group
b) control group
c) independent group
d) experimental group
ANS: b
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In old age, the lens becomes more rigid. What is the effect on vision? a. Focusing on nearby objects becomes more difficult
b. Shifting attention from one object to another becomes more difficult. c. Judging the speed of a moving object becomes more difficult. d. Recognizing faces becomes more difficult.
Changes in existing ways of thinking that occur in response to encounters with new stimuli is called assimilation
Indicate whether the statement is true or false
In ______, there is a conflict between one's anatomic sex and one's gender identity
a. a gay or lesbian sexual orientation c. transvestic fetishism b. a bisexual sexual orientation d. gender dysphoria
Affirming the antecedent is also called ______, and is a(n) ______ form
a) modus ponens; valid b) modus ponens; invalid c) modus tollens; valid d) modus tollens; invalid