Which of the following is least likely to be a threat to validity in a single-group before-after design?
a. Attrition
b. Maturation
c. Retesting
d. Selection
d
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Research has shown the long-term benefits of meditation to
a. include benefits for physical health but not mental health. b. include benefits for mental health but not physical health. c. include benefits for both physical and mental health. d. be greatly exaggerated by advocates of meditation.
Which attitude is most likely to lead to the perception of less stress?
a. ?I cannot succeed at anything. b. ?The glass is half empty. c. ?The glass is half full. d. ?People do not understand me.
A person whose speech mechanisms are isolated from the rest of the brain would show
which of the following symptoms? a. An inability to produce meaningful speech b. An inability to repeat speech c. An inability to learn new sequences of words d. An inability to process auditory input e. An inability to control the muscles for speech
A child who has not mastered object permanence believes that
a. not all grown-up men are fathers. b. two small pieces of pizza are better than one large piece. c. everyone is thinking about the child. d. a hidden doll no longer exists. e. rain occurs when the clouds are sad.