# measurement invariance

1. ### Item Response theory In variance

Hi, I am working on Educational assessment item calibration task. I am new to IRT and I have read 100s of papers still could not wrap around my head with invariance property of IRT and item calibration. My question is suppose I have response data of 20,000 students on 10 items, now I want to...
2. ### [MPlus] Using the Alignment Method with non-invariant factors

I am attempting to use the Alignment within CFA method from Marsh et al. (2017) on 2015 PISA. However, six out of nine factors have more than 25% non-invariance What can be done to a dataset that is found to be mostly non-invariant using the alignment method? Does this mean than the 6 factors...
3. ### Testing scalar invariance of a second-order factor model in LISREL

I have a non-normal data for which I used satorra-bentler chi square. The problem I am facing is in testing the measurement invariance of a second-order factor model in lisrel. Unfortunately, the lisrel tutorial only shows examples of first order factor models and there is hardly any mention of...
4. ### LISREL-SIMPLIS 2nd Order MultiGroup Measurement invariance Testing

Hi Hi. I am using LISREL 8.8 (Simplis Commands) I am stuck in doing 2nd order Multigroup measurement Invariance - specifically i cannot get through the stage for equal intercepts (strong invariance/Measurement intercepts) I kept having errors and model does not converge. Hope some one...
5. ### Longitudinal Analyses with questionnaire with varying items per wave

Hi all, For my thesis I am conducting a longitudinal analyses (5 waves) on antisocial behavior measured with the ASBQ. Now I have a different amount of items per wave, because they included items that were more age appropriate per wave. This results in: T1 (31 items), T2 (26 items), T3 (28...
6. ### [LISREL SIMPLIS] help with scalar invariance and calculating latent mean factors

Hello, I am conducting measurement equivalence on a two country sample (US and IN). I have established configural (baseline) and metric equivalence. However scalar invariance has not been established (the model change checks out but CFI change is less than .002). I examined the modification...