Which statement is true?
A. Homosexual males have less testosterone than heterosexual males do.
B. Treatment with sex hormones can result in changes in sexual orientation.
C. There are brain differences between individuals who are heterosexual and those who are homosexual.
D. Homosexual males have more testosterone than heterosexual males do.
Answer: C
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Which of the following statements about emotions and learning is most accurate?
a. Emotions are not rational and impede the learning process. b. Emotions distract one from engaging in analysis. c. Emotions focus your attention on the wrong features of the learning situation. d. Emotions provide feedback that helps you learn from your mistakes.
There are two gumball machines outside the local grocery store, one large machine and one small machine. Both machines have only yellow and orange gumballs, and each machine contains 50 percent of each color. For each coin, the large gumball machine dispenses 15 gumballs, while the small machine dispenses 5. Tim is a young genius whose interests include probability and sound decision-making. His "probability project of the day" is to get a greater percentage of either of the colors, but not an equal amount of each color. Given this, and presuming Tim has only one coin,
A. he should use his coin in the large machine. B. he should use his coin in the small machine. C. it doesn't make a difference which machine he uses. D. he should wait for other people to use the machines and see what they get.
Positive reinforcers _____ and negative reinforcers _____ the future probability of the behaviour that led to these respective consequences.
A) increase; increase B) increase; decrease C) decrease; decrease D) decrease; increase
__________ refers to the consistency of measures in a research study, whereas __________ refers to the truthfulness of a measurement.
A. Reliability; validity B. Validity; reliability C. Variance from the mean; standardization D. Standardization; variance from the mean