Refer to Exhibit 20-1. A correlation statistic used with ordinal level data is

a. Spearman's rho.
b. Phi coefficient.
c. Pearson’s r.
d. Fisher's z.


ANS: A

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What is sample bias?

A. The researcher selects a sample that is not representative. B. The sample becomes less representative over time due to loss of participants. C. It is impossible to create a representative sample. D. A researcher fails to measure if a sample is representative.

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Describe unearned privileges.

What will be an ideal response?

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Which of these describes a function of an Institutional Review Board (IRB)?

a. To conduct peer-review of research studies b. To offer advice on a study’s theoretical framework c. To determine whether proposed research complies with federal and institutional regulations d. To give guidance on conducting a literature review

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An important method of challenging or verifying the conclusions of a previous study is known as

a. meta-analysis. b. secondary analysis. c. replication studies. d. follow-up studies. e. all of the above.

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