See the following paper for a way to assess the power of one parameter:
Muthén, L.K. & Muthén, B.O. (2002). How to use a Monte Carlo study to decide on sample size and determine power. Structural Equation Modeling, 4, 599-620.
Joe Anson posted on Tuesday, April 22, 2008 - 4:29 pm
Thanks! I read the article you cited and I ran the analysis following the instructions in the User Manual. However, in my output, the values for %Sig. Coeff. are all 0.000 for the paths and 1.000 for intercepts and residual variances. I don't understand this, because % Sig. Coeff. is supposed to represent power. I re-ran the analysis with sample size 1000 and got the same result.
Hi, I am trying to conduct a post hoc power analysis using categorical variables for the exogenous, endogenous and mediator variables. I have used threshold values of the exogenous variables. I carried out the first step discussed in the user's guide to save the dat file. When I proceeded to step 2, I received an error message that the analysis would not work due to the thresholds, so I removed the thesholds. However, now when I ran analysis I received an error message in that the data file was too long (and I'm assuming now does not match the dat file I created because I removed the thresholds). I am seeking direction in terms of how to conduct the post hoc power analysis with categorical variables using thresholds. Thanks, Angela