Two Measures of Effect Size for an Independent Groups Design

question 12

Multiple Choice

Two measures of effect size for an independent groups design with more than two means are

• A) the t-test and the F-test.
• B) Cohen's d and the F-test.
• C) eta-squared and Cohen's f.
• D) F squared and rho.

Discuss the implications of significant and non-significant results in one-way ANOVA.

Compare and contrast t-tests and ANOVA for analyzing differences between group means.

Apply post-hoc analysis techniques for multiple comparisons in one-way ANOVA settings.

Understand the basic concepts and applications of analysis of variance (ANOVA).

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Definitions:

External Validity

The extent to which the results of a study can be generalized to other situations and to other people.

Internal Validity

The extent to which a study establishes a trustworthy cause-and-effect relationship between a treatment and an outcome.

Institutional Review Board (IRB)

A committee that reviews and monitors research involving human participants to ensure ethical standards are maintained.

American Psychological Association (APA)

A leading scientific and professional organization representing psychology in the United States, dedicated to advancing the creation, communication, and application of psychological knowledge to benefit society and improve lives.