Is it possible to model only the measurement of a formative construct?

Questions about the implementation and application of the PLS-SEM method, that are not related to the usage of the SmartPLS software.
Post Reply
lendijoy
PLS Junior User
Posts: 1
Joined: Tue Mar 10, 2020 12:46 pm
Real name and title: Lendi Joy

Is it possible to model only the measurement of a formative construct?

Post by lendijoy »

I would like to model Knowledge as a formative composite measure using PLS. I understand that formative measures alone are unidentifiable and unfortunately, I don't have any outcome variables to include in the model. I'm wondering if I could use the repeated indicator approach to model only the measurement of a construct by turning indicators into single-item first-order constructs and the composite a second order construct?

Also, I'm wondering if anyone is familiar with Adanco? Adanco is able to estimate item loadings of a composite construct, although the weights are all equal when using Mode B. Would modeling the variable this way be any more useful than simply calculating item-total correlations?
Post Reply