In What Significant Ways Do Correlational Research Designs Differ from Experimental

question 48

Multiple Choice

In what significant ways do correlational research designs differ from experimental research designs?

• A) Correlational research does not require the selection of a sample to study.
• B) Correlational research does not generate hypotheses.
• C) There is no comparison group in correlational research.
• D) There is no manipulation of variables in correlational research.

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Definitions:

Kruskal-Wallis Test

A nonparametric method for testing whether samples originate from the same distribution, used when the assumption of normality in ANOVA is violated.

P-value

The probability of observing test results at least as extreme as the results actually observed, under the assumption that the null hypothesis is true.

Test Statistic

A value calculated from sample data during a hypothesis test to decide whether to reject the null hypothesis.

Kruskal-Wallis Test

A nonparametric method for testing whether samples originate from the same distribution, used for comparing more than two groups.