T-values dropped after adding more exogenous variable?

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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Spectre
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T-values dropped after adding more exogenous variable?

Post by Spectre »

Why does the t-values dropped after I add more exogenous variable into my model?

My t-values were high if I only have 3 exogenous variable to one endogenous variable.

If I added another 3 more exogenous variable, the t-values for the original 3 exogenous variable dropped. Why?
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Diogenes
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Post by Diogenes »

Hi,
multicollinearity between exogenous LV.

Best regards,
Bido
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