In several research studies, the incidence of same-gender sexual orientation was greater for those siblings of a gay male who were
A) ?an identical twin.
B) ?a fraternal twin.
C) ?an adoptive brother.
D) ?a half-brother.
A
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The point of calculating effect size measures is to
a. decide if something is statistically significant. b. convey useful information to the reader about what you found. c. reject the null hypothesis. d. prove causality.
Regarding influences on helping, which of the following statements is FALSE? a. A person is more likely to help a victim if they make an external attribution about the cause of the victim'scircumstances
b. The presence of others increases the likelihood that someone will choose to help. c. In ambiguous situations, people are less likely to offer help than in clear-cut situations. d. Factors of similarity, mood, and gender have effects on helping behavior. e. People with baby-faced features are more likely to receive help than people with more mature features.
Which is the best example of explicit expectations?
A. family tradition of putting up a Christmas tree the day after Thanksgiving B. a contract outlining a caterer duties at a wedding C. children trying to make their teacher pleased with them D. a meaningful glance at a spouse when it is time to watch dishes
_____ removes the effects of an aversive stimulus, whereas _____ removes the possibility of an aversive stimulus from occurring in the first place
a. Partial reinforcement; punishment b. Positive reinforcement; positive punishment c. Negative reinforcement; negative punishment d. Escape learning; avoidance learning