I found a typical mediator model with my data: A -> B is better explained by A->C->B. The beta between C and B is negative which was expected. The path between A and B is positive, which was also expected. However, the beta between A and C is positive which was not expected. Moreover, the correlations between A-variables and C-variables are negative (p < .05). How can a negative correlation between two types of variables turn into a positive beta between two latent variables when using SmartPLS (Version 3)? A (formative) and B (reflective) are single item constructs and C is a reflective measurement model with 5 indicators.
Thank you for having a look into this problem.
Kind regards
signs of path coefficients
- Hengkov
- PLS Super-Expert
- Posts: 1599
- Joined: Sun Apr 24, 2011 10:13 am
- Real name and title: Hengky Latan
- Location: AMQ, Indonesia
- Contact:
Re: signs of path coefficients
Hi,
There are only two problems that might cause this to happen. First, you act as a moderator variable suppressor and Second, is the collinearity problem that may occur in the formative indicators.
Greetings,
There are only two problems that might cause this to happen. First, you act as a moderator variable suppressor and Second, is the collinearity problem that may occur in the formative indicators.
Greetings,