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A researcher used a two-group quasi-experimental (nonequivalent control group) design to test the effect of a...

A researcher used a two-group quasi-experimental (nonequivalent control group) design to test the effect of a Tai Chi intervention on quality of life in nursing home residents. The elders’ age was statistically controlled. What procedure for statistical control might the researcher have used?

A.

Propensity score matching
B.

Analysis of covariance
C.

Manipulation checks
D.

Power analysis
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Answer #1

Analysis of covariance will be used by the researcher for statically control . It tests whether there is significant difference between groups after controlling for variance explained by a covariate . F test is used to test the statistical significance .

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