One-sided confidence intervals PreviousNext
Mplus Discussion > Structural Equation Modeling >
 Marius Wrulich posted on Tuesday, September 27, 2011 - 4:33 pm
Dear Dr. Muthén,

I would like to ask if there is any possibility to obtain one-sided 95% confidence intervals for analyses using the Mplus 5.2 software. Specifically, we hope to obtain one-sided CIs for coefficients from straightforward linear regression and ordinal logistic regression, as we are testing one-tailed hypotheses.

One way we thought of might be to take the range of the two-sided 95% confidence interval from the Mplus output, then determine the lower (or, depending our hypothesis, the upper) bound of a two-sided 90% CI, and then add (or substract) the range of the two-sided 95% to (or from) this bound.

However, if I understand correctly, Mplus only gives two-sided 95% and 99% CIs for regression parameters, not 90% CIs.

Do you perhaps have any other suggestions on how to obtain one-sided CIs for regression parameters?

Thank you very much for your help.
 Linda K. Muthen posted on Tuesday, September 27, 2011 - 8:04 pm
Mplus does not provide one-sided confidence intervals. You would need to compute those yourself.
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