When the probability that an experimental result is due to chance is lower than alpha, the researcher should _____ the null hypothesis
a. reinstate c. fail to reject
b. accept d. reject
D
The null hypothesis states that chance (and not the independent variable) is responsible for the results. If the probability of this is less than alpha, it is very unlikely that chance is responsible for the results, and the null hypothesis should be rejected.
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_____ ratings have been successful in predicting future success of promoted employees but/and are _____ in organizations
a. Customer and subordinate / seldom used b. Peer / seldom used c. Self-appraisal / seldom used d. self-appraisal / often used
Studies of long-term memory for material learned in cognitive psychology classes indicate that
a. 10 years from now you will not remember anything that you now know. b. 10 years from now you will remember almost everything you know now. c. 10 years from now you will remember about 25 percent of what you know now. d. 10 years from now you will remember about 50 percent of what you know now.
According to a Bureau of Justice Statistics (BJS) study cited in the text, which type of offender is most likely to be re-arrested for a new crime after release from prison?
A. Drug offenders B. Violent offenders C. Public order offenders D. Property offenders
Using the __________ design, researchers observe how developmental change occurs
A) longitudinal B) cross-sectional C) sequential D) microgenetic