Search results

  1. amsavage

    Generating standardized standard errors

    I am testing a structural equation model using Stata. I need to report standardized direct, indirect and total effects with associated standard errors (effects decomposition). While I can get the standardized effects, Std. Err. are only generated in relation to the unstandardized coefficients...
  2. amsavage

    bootstrap estimates with summary data

    I feel like this may be a silly question, but pride aside: If you only have access to summary data (cov matrix, means and SD) can you still generate bootstrap estimates in AMOS? I think the answer is likely 'not without raw data' but I would like to see if any other ideas exist out there on...
  3. amsavage

    SEM using survey data and maximum likelihood estimation - fit statistics?

    I have estimated an SEM model in STATA based on survey data. Once I identify the data as survey by including sample weight and bootstrap weight variables I can no longer get fit statistics. Not even the basic X2 and associated p value. The message I receive is: model was fit with svy: prefix...
  4. amsavage

    Consolidating multiply imputed data into a single dataset

    If one uses multiple imputation in STATA to derive 5 complete datasets, could the newly imputed values simply be averaged to create a substitute value? EG. 'mi impute mvn' is used to generate 5 possible values for one missing value. Can I average those 5 values and use the result by itself in...
  5. amsavage

    AMOS: covariance matrix only input based on ordered catagorical data - possible?

    Hello, I am attempting to use AMOS to run a number of structural equation models. Several of my manifest variables are ordered categorical, a few (intended to be exogenous) are even binary. Unfortunately I only have access to secondary summary data (i.e. a covariance matrix with means and...