If most of the people with high scores on a test are close to average on a retest, and most of those with low scores on the first test are also close to average on the retest, what if anything can we conclude?
a. The test has low reliability.
b. The test has high validity.
c. Scores on the test follow the normal distribution.
d. We can draw none of these conclusions.
a
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In an experiment, four groups of college students used different memorizing strategies to learn the material in one chapter of a textbook. Then each group was given the same multiple-choice test on the material
What was the dependent variable in this study? a. the students' performance on the test b. the four different groups c. the four different memorizing strategies d. manipulation of memorizing strategies
The same musical note played on a guitar, a piano, and a flute does not sound the same because most sounds consist of several different frequencies. This distinctive quality of a sound is called _____
a) hertz. b) amplitude. c) unique. d) timbre.
The leading cause of death among 15- to 24-year-olds is
A) homicide. B) motor vehicle accidents. C) suicide. D) cancer.
Brenda and Todd are each 20-years-old; Brenda is a lesbian and Todd is gay. Research on the stability of sexual orientation suggests which of the following about their sexual orientation over time?
A. Both will continue to only identify as homosexual throughout their lives. B. Todd is less likely to experience fluctuations in his sexual orientation. C. Brenda is less likely to experience fluctuations in her sexual orientation. D. They are equally likely to experience fluctuations in their orientation over time.