Deliberate self harm is listed in DSM-5 as one of the symptoms of
a. schizophrenia.
b. borderline personality disorder.
c. psychopathy.
d. self-injurious neuroses.
Answer: b.
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One sample has n = 5 scores and the second has n = 10 scores. If the pooled variance for the two samples is 30, what is the value of the estimated standard error for the sample mean difference?
a. 2 c. 9 b. ?2 d. 3
A weakness of __________ is that participants in the research often report inaccurate information, sometimes without even intending to.
A. naturalistic observation B. surveys C. field experiments D. laboratory experiments
What major threats to internal validity are controlled by this research design?
What will be an ideal response?
In an experiment by Lepper, Greene, and Nisbett (1973), children drew pictures with markers. Some were given an expected award after they drew their pictures, some were given an unexpected award after they drew their pictures, and some received no award. In follow-up sessions 1 to 2 weeks later, which group(s) spent the lowest amount of time drawing pictures?
a. those who got the expected award b. those who got the unexpected award c. those who got no award d. all groups spent an equal amount of time drawing pictures