Which is the best description of "validity"?

A. The ability of an instrument to yield consistent results over time.
B. The ability of a study to produce quantifiable data.
C. The ability of a researcher to correctly define the research variables.
D. The ability of an instrument to measure what it is supposed to measure.


Answer: D

Health & Biomechanics

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Fill in the missing word in the definition for the key term.

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The focus with breathing exercises is to

a. "breathe away" the tension. b. ignore breathing patterns. c. take short, shallow breaths. d. gain control over one's attention.

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Many people have little time to cook these days, which results in turning to restaurants, where we have less control over large portion sizes

Indicate whether the statement is true or false.

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Your partner is likely interested and cares about what you're saying if he or she ________ as you speak

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