Pretest and posttest modeling

Questions about the implementation and application of the PLS-SEM method, that are not related to the usage of the SmartPLS software.
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abangert
PLS Junior User
Posts: 8
Joined: Wed Oct 26, 2016 3:02 pm
Real name and title: Arthur Bangert Associate Professor

Pretest and posttest modeling

Post by abangert »

Hello,

I have a question about comparing a path model from pre-intervention to a post-intervention situation. The goal is to determine if there is a change in the variables over time.

I think you could compare the estimates prior to the intervention and after the intervention to determine the change (if any) in the relationships between variables and the overall R square of the model.

Would a multigroup analysis work - use the same group twice?

Also, can you point me toward any manuscripts that have conducted this type of analysis.

I would appreciate any advice you all might have.

I have attached the model

Sincerely,

Art Bangert
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Figure 1, proposed model.png
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cringle
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Real name and title: Prof. Dr. Christian M. Ringle
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Re: Pretest and posttest modeling

Post by cringle »

Thanks. Comparison of PLS results across different points of time is a super interesting research topic since almost no suggestions exist on that topic. In your specific situation, your approach sounds plausible for a start.

Best
CR
jmbecker
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Re: Pretest and posttest modeling

Post by jmbecker »

A potential problem with a multi-group analysis could be that all current test assume independent samples, but you have dependent samples.
An easier way to analyze pre- and post-test measures would be to use difference scores.
Dr. Jan-Michael Becker, BI Norwegian Business School, SmartPLS Developer
Researchgate: https://www.researchgate.net/profile/Jan_Michael_Becker
GoogleScholar: http://scholar.google.de/citations?user ... AAAJ&hl=de
abangert
PLS Junior User
Posts: 8
Joined: Wed Oct 26, 2016 3:02 pm
Real name and title: Arthur Bangert Associate Professor

Re: Pretest and posttest modeling

Post by abangert »

Thank you , Dr. Becker,
That does make sense to me.

Thanks for the suggestion

Art
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