how does PLS test the influence of each IV in a model?
Posted: Mon Jun 10, 2013 12:39 pm
Hello.
I have a doubt problem in understanding a reviewer's comment concerning my PLS analyses. I have a model with 3 independent variables (three motivations), some controls and one dependent variable (the adoption of one policy). The reviewer says:
"Considering the fact that you have examined the three motivations individually, how can you be sure that the use of EPMS [i.e. my DV] was driven specifically by this motivation instead of the two other motivations? My point is that the three motivations coexist simultaneously. They are complementary and not mutually exclusive. In other words, given the fact that you did not examine conceptually or empirically the combination of motivations, you cannot conclude that firms actually use EPMS in reaction to stakeholders’ concern. In order to do that, you would need to test the influence of stakeholders’ concern on EMPS while controlling for the other two motivations [....] PLS cannot distinguish the impact of those various combinations. It tests the overall specific influence of each motivation. Other types of tests would be necessary to test those combinations"
Is this true? Doesn't PLS test the influence of each IV in a model by controlling for the other IV in the model? If not, what other types of test should I use, more traditional regression analyses?
Thank you very very much for your help ...
Irene
I have a doubt problem in understanding a reviewer's comment concerning my PLS analyses. I have a model with 3 independent variables (three motivations), some controls and one dependent variable (the adoption of one policy). The reviewer says:
"Considering the fact that you have examined the three motivations individually, how can you be sure that the use of EPMS [i.e. my DV] was driven specifically by this motivation instead of the two other motivations? My point is that the three motivations coexist simultaneously. They are complementary and not mutually exclusive. In other words, given the fact that you did not examine conceptually or empirically the combination of motivations, you cannot conclude that firms actually use EPMS in reaction to stakeholders’ concern. In order to do that, you would need to test the influence of stakeholders’ concern on EMPS while controlling for the other two motivations [....] PLS cannot distinguish the impact of those various combinations. It tests the overall specific influence of each motivation. Other types of tests would be necessary to test those combinations"
Is this true? Doesn't PLS test the influence of each IV in a model by controlling for the other IV in the model? If not, what other types of test should I use, more traditional regression analyses?
Thank you very very much for your help ...
Irene