Confidence interval

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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Marcus Nygard
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Confidence interval

Post by Marcus Nygard »

Hello,

I wonder how I can get confidence intervals (CI) for both my path coefficients and my LV. Is it possible to get the CI for the path coefficients just by taking the 975:th and 25:th value from a sorted bootstrap sequence of a 1000:nd runs (for a 95% CI) or should I use the formula; path coeff=+-1.96*SEboot?

Is it necessary to calculate CI for the indicators in order to get CI for the LV?

Cheers
/Marcus
Marcus Nygard
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Post by Marcus Nygard »

And with CI for the indicators I mean CI for the indicator weights.

Best
Marcus
schroer
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Post by schroer »

Hi,

yes, you may use the distribution from the bootstrap samples to obtain CIs. These CIs, however, tend to be too narrow, because they are not bias-corrected [1].

Best,

Joachim


[1] Shrout, P. E., & Bolger, N. (2002). Mediation in experimental and nonexperimental studies: New procedures and recommendations. Psychological Methods, 7(4), 422-445.
Dr. Joachim Schroer

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