A Researcher Computes a

question 51

Multiple Choice

A researcher computes a .95 confidence interval for an experimental group to be 3.0 B 7.0,and computes a .95 confidence interval for a control group to be 0.0 B 4.0.Based on these confidence intervals,the researcher can state that

• A) the results for the effect of the independent variable on the dependent variable are inconclusive.
• B) the independent variable definitely influenced participants' scores on the dependent variable because the confidence interval for the experimental group is higher than that that of the control group.
• C) the independent variable definitely did not affect participants' scores because the confidence interval for the control group includes zero.
• D) the population value for the experimental group is .95.

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