Two-Way ANCOVA in SPSS with Testing the Homogeneity of Regression Slopes Assumption

This video demonstrates how to conduct and interpret a two-way ANCOVA in SPSS. In this example, there are two independent variables, one covariate, and one dependent variable. The assumption of homogeneity of regression slopes is tested.

[@johnfruits3544]

There is so much information in your videos that can support anyone needing to use these tools for SPSS. Very clear and concise information for those understanding it. Thanks for your videos!

[@RM-hq9fl]

Thanks for another great video! Just wondering how you would test for homogeneity of regression slopes with multiple covariates?

[@samiraedres8970]

Thanks very much for your support. Dr.Todd, I have a question and I hope you help me. If i have two fixed factors, one dependent variable, and two covenants, can i put two covenants and two factors in the same analysis in the SPSS. Or I need to put two factors with one covariant in one analysis, and then I put the another covariant with the same two factors

[@nimanthausjp]

Very interesting video and I have watched many videos related to statistics and mental health on your channel. However, I did not find any video about LMM and GLLM in SPSS. If yes, please be kindly do it when possible. waiting for it......

[@rikusgrobler]

Hi Dr Grande. Can you use ANCOVA in the same way you have described in this video when the covariate is a categorical variable, e.g. Level of education (high school, graduate, post graduate)?

[@DrGrande]

My understanding is that the covariates in ANCOVA must be interval or ratio (scale in SPSS).

[@pacein8043]

My data for homogeneity regression slope assumtion not fulfilled. Can Ancova test still be done?

[@user-pd9yi7ze6n]

Is it possible to conduct a two way mixed ANCOVA?

[@jazosorio]

What should I do if I don't meet the assumption of homogeneity of regression slopes

[@limtangzhi8462]

Hi there, to the best of my knowledge, I'm afraid that you can't continue to use the ANCOVA analysis if you did not meet the assumption of homogeneity of regression slopes. see Field (2013).