In an experiment, a researcher manipulates one variable to see how it affects a second variable. The manipulated variable is called the:
a) dependent variable.
b) experimental variable.
c) independent variable.
d) placebo.
ANS: C
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Seventy-three-year old Carlos developed an extreme fear of the dark. His wife is becoming increasingly frustrated because Carlos insists on sleeping with the lights on. What is Carlos experiencing?
A. depression B. phobic disorder C. generalized anxiety disorder D. panic disorder
Which of the following is not one of the clusters of personality disorders?
a. Odd and Eccentric personality disorders b. Addictive or Dependent personality disorders c. Dramatic and Erratic personality disorders d. Anxious and Fearful personality disorders
Left-handed individuals who write with their hand below the writing line, and righties who use a hooked position in writing are usually
a. more intelligent than those who do not use this hand position. b. less intelligent than those who do not use this hand position. c. left-brain dominant for language. d. right-brain dominant for language.
A child who can think logically about the "here and now" but not abstractly is in which of Piaget's stages?
A. Preoperational B. Concrete operational C. Formal operational D. Sensorimotor