In a two-way ?2, N can be found by
a. adding all observed frequencies.
b. adding row total observed frequencies.
c. adding column total observed frequencies.
d. All of the above are correct.
d
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A study by El-Sheikh et al. (2010) found that compared to white children, black children from both low- and middle-income families __________.
A. had lower levels of aggression if they slept poorly B. had higher levels of aggression if they slept well C. did not differ in aggression levels from white children if they slept well D. had the same levels of aggression regardless of whether they slept well or not
Which of the following have NOT been helped through cognitive therapy?
a. Autism, mental retardation, and drug-related problems b. Phobias, depression, and anxiety disorders c. Obsessive-compulsive disorders, hyperactivity, and sexual dysfunction d. All of these have been effectively treated with cognitive therapy.
The ability of the brain to change its anatomy over time, within limits, is known as ____.
A. plasticity B. regression C. connectivity D. long term potentiation
What term describes when participants drop out of a longitudinal study?
a. selective survival b. attrition c. cohort effect d. selective sampling