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Like a literature review, but more systematic.

Uses response categories ranging from “strongly agree” to “strongly disagree.”

Based on this procedure, it is possible to infer the values or responses on each item from the total score on a set of items.

Rather than create a composite measure, the effects of each indicator are analyzed separately.

A statistical framework for meta-analysis.

Commonly used in experimental research to increase external validity.

Adding up the responses to multiple items creates a(n) ________.

Used to compare outcomes across studies in a meta-analysis.

Use of dissimilar measures or methods to address the same research question.

In contrast to indexes, scales are designed to ensure this.

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