Homogenous sample problem, Small factor loading, and Normality

How to obtain confidence intervals in Amos?

Dear all, I would like to know your opinion on the following issue I am struggling with. I am estimating a multigroup model with several factors all correlated among them (they represent...

04 February 2021 1,381 4 View

AMOS - Question regarding correlated errors in CFA, what next?

Hi all, Hopefully this is just a quick question for those of you au fait with CFA in AMOS. I am brand new to this. I'm looking at model (small sample size, yes I know) with 5 latent variables....

26 January 2021 4,425 2 View

Warning in Lavaan, variance-covariance not positive definite!, model is not identified?

Dear colleagues, I am new to R, I have been using Amos for conducting CFA but came to learn that when dealing with Likert scale, Lavaan in R is a better tool to do such analysis. I started using...

30 December 2020 5,608 3 View

Is there a better library or function for plotting CFA with many observed variables in R?

Hello! I'm kind of new in using R for doing EFA, CFA, and SEM. I just followed a guide to perform CFA on my data to see how my context fits the ITC-SOPI model in a VR photo-based tour. I used...

23 December 2020 1,679 2 View

Measurement invariance of a bifactor model with categorical indicators. What is the recommended approach?

I have a bifactor model with categorical indicators: 4-option Likert-type items. One of my research objectives involves testing measurement invariance between two groups. I have been doing it as...

16 December 2020 4,601 2 View

Proper method for assessing model invariance following Confirmatory Factor Analysis (CFA) and preceding 2x2 between-subject analysis?

I have produced a good-fitting, reliable baseline model according to CFA. The model contains several factors each loaded by several categorical (ordinal) items. I ultimately intend to analyze the...

15 December 2020 1,668 4 View

2nd factor analysis, interpretation help, Can any one explain?

I am trying to see if cultural intelligence (CQ) is composite of skill, knowledge, cognition using 2nd order factor. i get the idea of latent variable (Sk,Kn,Co)'s standardized regression weight...

14 December 2020 1,930 3 View

May I use Minimal important difference (MID) in non-normal distribution?

MID is based on Standard deviation, consequently, I should not use it in non-normal distribution. Am I right? If yes, which test may replace MID?

13 December 2020 7,573 3 View

Confirmatory measurement model (CFA - SEM) with poor fit- what does it mean about the predictor?

Dear SEM experts, I will appreciate your help on this: My model contains 4 predictors. the outcome is a latent construct (built of 3 manifests). Fit indices (CFI, TLI, RMSEA) for the CFA show a...

08 December 2020 2,155 3 View

Subscales in CFA - Any useful documentation?

As alluded to in the title, I'm new to AMOS so I'm looking for appropriate direction, thank you!

06 December 2020 7,626 7 View

Christian Geiser

If by 'homogeneous sample' you mean a sample with restricted (small) variances, then yes, this could very well lead to small factor loadings in factor analysis due to the restricted range. Factor analysis is based on covariances/correlation coefficients, and these can be affected (attenuated) by a restricted range.

Chuck A Arize

Check this link.

https://math.libretexts.org/Courses/Mission_College/MAT_04B_Differential_Equations_%28Kravets%29/04%3A_Linear_Second_Order_Equations/4.01%3A_Homogeneous_Linear_Equations/4.1E%3A_Homogeneous_Linear_Equations_%28Exercises%29