Researchers Use Multiple-I Designs to

question 15

Multiple Choice

Researchers use multiple-I designs to

• A)conduct intraparticipant replications.
• B)manipulate different levels of an independent variable.
• C)test multiple participants in a single study.
• D)reduce error variance.

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Definitions:

P-value

The likelihood of getting test outcomes that are at least as significant as those seen in the test, under the assumption that the null hypothesis holds correct.

Z

In statistics, typically refers to a standard score indicating how many standard deviations an element is from the mean.

Null Hypothesis

A hypothesis in statistical analysis that assumes no significant difference or effect exists between certain characteristics, conditions, or variables.

Significance Level

The significance level, also known as alpha, is a pre-determined threshold for statistical significance, used to decide whether an observed effect is not due to chance.