In a single-blind study, the participants do not know the purpose of the study or the condition to which they are assigned. What is the difference in a double-blind study?
a. The researcher tells the participants the purpose and their assigned conditions in the study.
b. The participants also do not know when the actual study begins or ends.
c. The researcher also does not know which condition the participants are in.
d. The participants know to which condition they have been assigned, but the researcher does not.
Answer: C
Rationale: Neither the participant nor the experimenter knows the exact treatment for any individual.
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Poonum is underweight but is not necessarily concerned about her weight. She limits her eating to only cottage cheese and boiled eggs because she is intensely sensitive to the smell of most foods. According to DSM-5, she should be diagnosed with __________.
A. anorexia nervosa, binge/purge subtype B. eating disorder not otherwise specified C. binge-eating disorder D. avoidant restrictive food intake disorder
Describe two tactics other than physical violence, or the threat of physical violence, that police use to extract confessions from suspects. Also explain the conditions under which people are most likely to internalize a false confession
What will be an ideal response?
Carlotta has recently befriended Phyllis, who has been driving Carlotta's children to day care. The new friendship is most likely based on
a. matching. b. proximity. c. similarity. d. prosocial behavior. e. reciprocity.
Which of the following statements is a possible explanation for greater brain activity in older adults?
Older adults compensate for losses by using more parts of their brains. Older adults have increased brain reserves. Older adults use only one hemisphere of the brain. The processing speed of older adults increases.