If Researchers Unintentionally Manipulate Another Variable or Construct in a Study

question 65

Multiple Choice

If researchers unintentionally manipulate another variable or construct in a study, then _____ has also been introduced into the experiment.

• A) power
• B) a placebo
• C) post-hoc
• D) a confound

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Definitions:

Test Statistic F

The ratio of two variances that follows an F-distribution, used in statistical methods like ANOVA to determine the significance of group differences.

Degrees of Freedom

The number of independent values or quantities that can be assigned to a statistical distribution without violating any constraints.

Dependent Variable

A variable in an experiment or model that is expected to change as a result of manipulations or changes in the independent variable(s).

Independent Variables

Variables that are manipulated or categorized to determine their effect on other variables.