Page 1 of 1

The results of PLS predicts

Posted: Wed Sep 07, 2022 7:51 am
by sling
Hi,
I seek your advice on the results of PLSpredict. If the results of the Q² value in PLSPredict are positive but when comparing with the LM outcomes, majority of the PLS-SEM results have higher prediction errors (e.g., in terms of RMSE or MAE) than the LM. Based on these results, can we still conclude that The PLS-SEM models have better predictive performance than using simply mean prediction but in comparison with LM (linear regression model) outcomes, generally the PLS-SEM models do not improve the the predictive performance of the available indicator data.

Can we just use one of these two benchmarks ( Q2 and RMSE/MAE) or we have to use both to assess the PLS_SEM predictive perfomance?

Appreciate your advice. Thank you.

Best regards,
Lintje

Re: The results of PLS predicts

Posted: Tue Sep 13, 2022 7:46 am
by jmbecker
This paper has a good step-by-step guideline on how to use PLSPredict:
Shmueli, G., Sarstedt, M., Hair, J. F., Cheah, J. H., Ting, H., Vaithilingam, S., & Ringle, C. M. (2019). Predictive model assessment in PLS-SEM: guidelines for using PLSpredict. European journal of marketing, 53 (11), 2322-2347. https://doi.org/10.1108/EJM-02-2019-0189