Graphical Description of Interaction Outcomes for Regressions with Groups.

Schafer, William D.

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Peer reviewed

ERIC Number: EJ448304

Record Type: CIJE

Publication Date: 1992

Pages: N/A

Abstractor: N/A

ISBN: N/A

ISSN: ISSN-0748-1756

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Graphical Description of Interaction Outcomes for Regressions with Groups.

Schafer, William D.

Measurement and Evaluation in Counseling and Development, v25 n2 p50-52 Jul 1992

Notes that presence of heterogeneous regression slopes in an analysis of covariance design is equivalent to presence of interaction in randomized-blocks design. Describes modification of the usual graphical representation of heterogeneous regressions that can aid in interpreting significant regions for regression surfaces. (NB)

Descriptors: Analysis of Covariance, Data Interpretation, Graphs, Regression (Statistics), Statistical Analysis

Publication Type: Journal Articles; Opinion Papers

Education Level: N/A

Audience: N/A

Language: English

Sponsor: N/A

Authoring Institution: N/A

Grant or Contract Numbers: N/A