When the interaction term is not significant in an ANCOVA analysis, we can conclude that there is no influence of the confounding variable on the values measured.

Question

Quizplus · Accepted Answer

A non-significant interaction term in ANCOVA suggests that the slopes of the relationship between the covariate and the dependent variable are similar across groups, but it does not necessarily mean the confounding variable has no influence on the measured values. The main effects of the covariate could still be significant, indicating an influence.

When the Interaction Term Is Not Significant in an ANCOVA