If a Researcher Finds Interaction Between Variable X and Y

question 19

Multiple Choice

If a researcher finds interaction between variable X and Y after controlling for Z,what would be the next step in the statistical analysis?

• A)disregard Z and select a new control variable
• B)disregard X and select a new independent variable
• C)disregard Y and select a new dependent variable
• D)incorporate Z into the analysis

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Definitions:

Hypothesis Test

A method of statistical inference used to decide whether there is enough evidence to reject a null hypothesis about a population parameter based on sample data.

P-Value

The probability of observing results at least as extreme as those in the data, assuming the null hypothesis is true, used as a method to test hypotheses.

Large-Sample Z

A statistical test used for hypothesis testing or constructing confidence intervals when the sample size is large, typically using the Z-distribution.

Major Defects

Significant imperfections or flaws in a product, system, or process that adversely affect its performance, safety, or intended function.