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To Measure Whether Older People Are Calmer Than Younger People

Question 47

Multiple Choice

To measure whether older people are calmer than younger people, a researcher gives 20-year-olds, 40-year-olds, and 60-year-olds a questionnaire. This research technique is called a(n) :


A) experiment.
B) longitudinal study.
C) cross-sectional study.
D) correlational study.

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