In Experimental Research,the Variable That the Researcher Measures Because It

question 259

Multiple Choice

In experimental research,the variable that the researcher measures because it is thought to be affected by the manipulation of another variable is the

• A) extraneous variable.
• B) dependent variable.
• C) independent variable.
• D) controlled variable.

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Definitions:

Parametric Tests

Statistical tests based on assumptions about the distribution of the data (e.g., that it is normally distributed).

Nonparametric Test

A statistical test used when the assumptions for parametric tests are not met, not requiring the population's distribution to follow any specific distribution.

Mann-Whitney U Test

A nonparametric test used to compare differences between two independent groups when the dependent variable is either ordinal or continuous, but not normally distributed.

Paired-difference Experiment

An experimental design where the observations are made in pairs, and the analysis is based on the differences within each pair.