2
$\begingroup$

Can somebody explain me how to test whether simple slopes are significant? ...and is it necessary to test the significance of the simple slopes or would it be sufficient to plot the slopes and describe the effects?

I performed a moderation analysis with a regression, i.e. a regression with an interaction. The interaction is significant. I calculated the simple slopes for different Levels of the moderator, mean + / - 1 SD. But I do not know how I can test whether These slopes are significant.

$\endgroup$
2
  • 2
    $\begingroup$ Does "simple slope" mean something different than "slope"? $\endgroup$
    – whuber
    Nov 17, 2017 at 20:05
  • $\begingroup$ I do not think so. In the context of Moderation Analysis this term is used when you calculate slopes for different levels of the moderator. $\endgroup$
    – Anna
    Nov 17, 2017 at 20:26

1 Answer 1

2
$\begingroup$

You said that the interaction is significant. In a model with different slopes in different groups the meaning of interaction is that the slopes are different! So I think you have already answered your own question, unless you mean something different with significance of slopes.

$\endgroup$
0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.