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Moderation effect hypothesized positive but result shows negative an significant path coefficient

Posted: Tue May 26, 2020 11:44 am
by vaibhavsmartpls
Dear Community,

I have a model in which a continuous variable A positively influences B and as per the hypothesis, X (continuous variable) positively moderates their relationship. SmartPls bootstrapping results confirmed a significant positive relation between A and B, however, the interaction effect of X came out to be significant with a negative path coefficient (Beta = -0.054, p < 0.001). Now I am confused as I was expecting a positive path coefficient. Please tell me, how should I interpret this outcome, and is my moderation related hypothesis supported or not supported?

Also, the Simple Slope Plot shows almost parallel three lines (X at -1 SD, X at mean and X at +1 SD), with a positive slope.

Further, the bias-corrected confidence intervals also do not include zero in between [-0.0887, -0.0201]

Please tell me how to interpret the above and what to explain and report about hypothesis

Thank You

Re: Moderation effect hypothesized positive but result shows negative an significant path coefficient

Posted: Thu Nov 19, 2020 6:32 am
by tanyokeyew
Dear Vaibhav,
I'm having similar problem, do you get any answer so far? Appreciate if you could advise, thank in advance.
Regards, Yoke Yew

Re: Moderation effect hypothesized positive but result shows negative an significant path coefficient

Posted: Tue Mar 02, 2021 8:36 am
by jmbecker
Well, the interpretation is easy and as usual: You have a positive relation between A and B when X is at its mean (i.e., this is the estimated path coefficient between A and B when you moderator is in the model). This relation becomes weaker when X increases (i.e., negative interaction effect).

If you have hypothesized a positive interaction effect (i.e., the relation between A and B becomes stronger when X increases) then you hypothesis is not confirmed.