Doubts in Interaction analysis
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- PLS Junior User
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- Real name and title: V.Uma Maheswari, Research Scholar
Doubts in Interaction analysis
Hi all, In my interaction analysis in smart pls, the beta value of the interaction term is negative (should be positive as per the model assumption), though the beta values of the moderator and the independent variable are positive. The t-value for all the 3 variables are significant and the r-squared value of the dependent variable also increases due to the moderating effect. Should we consider the negative beta while interpreting moderating effect or can we stick with change in r-squared value and ignore beta value? Please clarify.
- Hengkov
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Re: Doubts in Interaction analysis
Hi,
You have collinearity problem, check it.
Regards,
You have collinearity problem, check it.
Regards,
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- PLS Junior User
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- Joined: Tue Aug 19, 2014 3:18 pm
- Real name and title: V.Uma Maheswari, Research Scholar
Re: Doubts in Interaction analysis
Thanks. Will do and get back.
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- PLS Junior User
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- Joined: Tue Aug 19, 2014 3:18 pm
- Real name and title: V.Uma Maheswari, Research Scholar
Re: Doubts in Interaction analysis
Hi
I did check for collinearity problems using SPSS and the VIF values for all my variables are above 1 and less than 5.
I did check for collinearity problems using SPSS and the VIF values for all my variables are above 1 and less than 5.
- Hengkov
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Re: Doubts in Interaction analysis
Hi,
If no have collinearity,this is supression effect. So, the sign change after you include moderation effect. For clear this issue may be you can asses Sympson Paradox Ratio.
Best regards,
If no have collinearity,this is supression effect. So, the sign change after you include moderation effect. For clear this issue may be you can asses Sympson Paradox Ratio.
Best regards,
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- PLS Junior User
- Posts: 5
- Joined: Tue Aug 19, 2014 3:18 pm
- Real name and title: V.Uma Maheswari, Research Scholar
Re: Doubts in Interaction analysis
will check out and get back. Thanks
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- PLS Junior User
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Re: Doubts in Interaction analysis
i also think something is wrong with collinearity