How many participants would be needed for a within-subjects experiment comparing four different treatment conditions with a total of 20 scores in each treatment?
a. 20
b. 40
c. 80
d. anywhere from 20 to 80
a
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Why are the terms light sleep and deep sleep not very useful? a. Even sleep that is interrupted repeatedly can be restful
b. REM sleep is deep in some ways and light in others. c. Periods of light sleep often lead into periods of deep sleep. d. Many animal species have little or no REM sleep.
Suppose you got 75 items correct on a 100-item, six alternative, multiple-choice exam. What would your score be after we corrected for guessing?
a. 50 b. 57 c. 63 d. 70
Which of the following is the best definition of Alzheimer's disease?
A) The late stage of alcohol-induced dementia B) A severe form of dementia for which the cause is unknown C) A more severe variation of Wernicke's syndrome D) The mental deterioration that strikes the oldest old and the frail elderly
Albert Bandura, who studied how children learn and display aggression, is a theorist who is most closely associated with which theoretical perspective?
a. social learning perspective b. cognitive-development perspective c. psychodynamic perspective d. family systems perspective