According to the research on factors related to adolescent sexual behavior,
a. academic performance is not related to early sexual experience.
b. Black females typically have their first sexual experience earlier than Latina females.
c. young males and females see sex as an enjoyable two-way interaction.
d. surprisingly, peer pressure does not appear to be an important determinant of early sexual activity.
B
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Suppose that a particular pattern of responses on a personality test is characteristic of 95 percent of people with some rare psychological disorder, and 5 percent of normal people. Would it be appropriate to use this test to identify people with that disorder? If not, why not?
a. Yes, this test would be a valid way to diagnose that disorder. b. No. The test will apply the diagnosis to more normal people than people with the disorder. c. No. A clinician should be more than 95 percent confident before making a diagnosis. d. No. Test results should be used only for research, not for diagnosis.
Why do we need to learn about median and mode?
A. They are useful depending on the shape of the distribution. B. They give more information than mean for a symmetrical distribution. C. They are the most reported measure of central tendency in journal articles. D. It is nice to know more than one measure of central tendency.
As Ed is falling asleep, his legs begin to tingle and then to ache. In order to relieve this painful prickly sensation, he begins to move his legs. This happens several times during the night, dramatically disturbing his sleep. Ed's sleep problem is most likely
a. hypnic jerk syndrome. b. somnambulism. c. restless legs syndrome. d. REM behavior disorder.
A researcher collects data on the amount of time children spend watching violent cartoons. He compares the behavior of a group of children who watch a lot of violent cartoons (Group 1) with a group of children who do not (Group 2). He finds that children in Group 1 are more aggressive on the playground than the children in Group 2. What can the researcher conclude?
A. There is a relationship between watching violent cartoons and aggressive behavior. B. Watching violent cartoons causes aggressive behavior. C. Aggressive behavior leads children to watch violent cartoons because they are reinforcing. D. Parents who reward aggressive behavior also allow their children to watch violent cartoons.