One-way ANCOVA: Testing for violation of homogeneity of regression slopes in SPSS (March 2022) @mikecrowson2462

Uploaded March 2022 | Updated September 2026, 2 weeks ago

In this video I demonstrate how to test for the assumption of homogeneity of regression slopes and then address a possible approach for dealing with a violation of that assumption (using Hayes Process macro).

The data for this video can be downloaded here: drive.google.com/file/d/1BArQ_wlQjvxH1oWqzVWciWxgHvBc4TAh

You can obtain a copy of the Process macro: processmacro.org/download.html

For more detail on how to use Process to test and describe the interaction between a multicategorical predictor and a continuous moderator, see this presentation: youtube.com/watch?v=IG-FnhvTud4

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