Model with only formative LVs
Posted: Mon Aug 01, 2022 4:31 pm
Dear SmartPLS community,
Diamantopoulos, Riefler, and Roth have shown that a PLS path model with only formative latent variables (LVs) is non-identifiable. It is also written here on the discussion forum.
I love SmartPLS, but, recently, I discovered the 'plspm' R package too. It offers two modes: A and B, which correspond to reflective and formative measurement, correspondingly. How is that possible that the 'plspm' R package estimates models with only formative LVs? How could you explain that? Are the results there correct and reliable?
For example, a model with an exogenous second-order formative LV and an endogenous formative LV can be estimated in 'plspm' R package. Then, I also added moderation there.
Diamantopoulos, Riefler, and Roth have shown that a PLS path model with only formative latent variables (LVs) is non-identifiable. It is also written here on the discussion forum.
I love SmartPLS, but, recently, I discovered the 'plspm' R package too. It offers two modes: A and B, which correspond to reflective and formative measurement, correspondingly. How is that possible that the 'plspm' R package estimates models with only formative LVs? How could you explain that? Are the results there correct and reliable?
For example, a model with an exogenous second-order formative LV and an endogenous formative LV can be estimated in 'plspm' R package. Then, I also added moderation there.