Questions tagged [amos]

AMOS is IBM SPSS AMOS, proprietary structural equation modelling software.

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Comparing two CFA models in AMOS (only 4 items per 1-2 factors)

I am trying to test in AMOS the discriminant validity of a 3-item measure (items "1, 2 and 3" against a 1-item measure "item Z" (both are Likert scale questionnaire instruments), by comparing whether ...
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1answer
34 views

Testing Measurement Invariance on data with small sample size

I‘m wondering what is the best way to test measurement invariance on data with small N, since CbSEM requires at least N = 200, or 5 - 10 cases for each indicator. For example I want to test a ...
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10 views

Goodness-of fit indices in CB-SEM AMOS

does any one know whether I should classify the goodness-of fit indices under the structural model or the measurement model? Thanks.
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1answer
29 views

Help with Interpreting results from 2 models: Variance explained vs Indirect Effects?

I am comparing two models using Path Analysis (pictured). Model A explained 49% of the variance in my DV. Model B (which is the same as Model A + an additional mediator) explained 48% of the variance ...
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8 views

AMOS, cross-lagged analysis, two-waves - error “The model has zero degrees of freedom”

I have performed cross-lagged analyses, two waves (time 1 and time 2) in AMOS following the four steps: the first one autoregressive, the second normal causation model keeping autoregressive paths, ...
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1answer
17 views

Multi-level data query

We want to find the relationship between supervisor's narcissism and subordinate's job commitment. We have collected data from 600 supervisors and 1800 subordinates reporting to them (three ...
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1answer
28 views

How to assess the significance of r2 values across models

I want to know whether (and how) I can test whether the difference in r2 values across two SEM models is significantly different. I have conducted a study where participants completed one of two ...
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1answer
30 views

SEM 4 questions - testing linearity, sum score, number of variables, independent variables

For my master thesis I'm making a structural equation model. However, I do not have much experience with this. So here are some different questions. I read that one of the assumptions important for ...
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1answer
138 views

Interpretation and formulation of SEM path coefficients?

Trying to interpret and write down my SEM results, but not sure if this is 1. correct and 2. well formulated. This is what my models and parameters look like (first unstandardized, then standardized): ...
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1answer
42 views

How exactly do I calculate the power in my SEM?

I am trying to calculate the power in my SEM analysis post-hoc. How exactly should I do this? What is the power for the R-squared result of IT-T2 and IT-T3? Background info: Sample size is 255. IT ...
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1answer
367 views

AMOS: Model is unidentified requires 26 additional constraints! How to fix? [closed]

After running model on AMOS I am not getting any output path and this note appears in the text output: "The model is probably unidentified. In order to achieve identifiability, it will probably be ...
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1answer
45 views

High value of R-squared correlation on behavioral intention while very low value of R-squared correlation on actual use of mobile shopping app

I have been working on antecedents of mobile shopping with UTAUT-2 model combined with the constructs of trust and perceived risk. I am using a sample of international students for my study. I wanted ...
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2k views

“The model is probably unidentified” AMOS

I am doing a CFA in AMOS and I keep getting the error message: "The model is probably unidentified. In order to achieve identifiability, it will probably be necessary to impose 1 additional constraint....
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131 views

Poor model fit - Difference between SEM and MLR

For a study I am researching a quite simple research model (7 IVs - 1 DV), in which I am not interested in underlying relations between the IVs: the relation between the IVs and the DV is all that ...
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0answers
295 views

Extracting Factor Scores of Latent Variables after CFA in AMOS

I plan to extract the latent variables' factor scores after conducting Confirmatory Factor Analysis (CFA). I will use these factor scores as explanatory variables for my next statistical procedure - ...
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1answer
91 views

AMOS: CFA testing invariance, but cannot name intercepts

I'm using AMOS to run a 2-factor model with 5 indicators each (10 in total). I'm assessing the invariance. So I'm assessing the invariance for sex. While the configural and metric invariance worked ...
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95 views

Is scalar invariance required to compare relationships between groups (but not comparing differences in means)

I am undertaking multigroup comparisons with the aim of comparing structural relationships between groups. I have established configural and metric invariance but do not have partial scalar invariance....
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108 views

Significant direct effect and non significant TOTAL effect

I have a cross-lagged model with 3 waves and two variables. Here the regression`s paths. ...
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1answer
183 views

measurement error, path analysis

I have used a path analysis without any latent variable. I know that measurement error is a huge issue in mediation models. I also know that parceling is one way to deal with measurement error, but ...
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1answer
2k views

Structural equation modeling with repeated measures

I have data that I thought would lend itself easily to structural equation modeling, but I cannot figure out one issue -- how to handle repeated measurement in SPSS AMOS. Participants were randomly ...
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1answer
259 views

Can dichotomous /binary data (0-1) be converted into Likert scale data (1-5)?

Read somewehere that one can simply put 0's of binary to 1 of Likert and 1's of binary to 5 of Likert,Is it the traditional way? Just for clarification,if someone is familiar with AMOS,i have the ...
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68 views

Is it correct to claim the existence of an 'indirect effect' in A>B>C chain when no significant A>C path is found? Or what else should I call it?

I am working on a SEM where I hypothesize a causal chain where A influences B, which in turn influences C. The data are from a 2x2 between-subjects experiment, N = 297. All the goodness of fit ...
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0answers
50 views

Left censored dependent variable in SEM

I'm working on a structural equation model in Amos. I have two independent variables, 5 mediators and a left censored dependent variable. The dependent variable is either 0 or a positive amount in ...
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0answers
79 views

SEM: Acceptable to report standardized factor loadings that is exactly 1.00 (not above)?

I have a situation where an indicator pathway has a factor loading that is exactly 1.00 (in the AMOS output the estimate is .998). The model converges, is positively defined and has a decent model ...
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328 views

Repeated Measures in SEM

I would have a question about using Structural Equation Modeling for comparing repeated measures results. I have a one DV which has been measured 4 times and corresponds to 4 different experimental ...
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2k views

Missing data in path analysis using AMOS — data imputation, EM, multiple imputation, or ML?

This question reflects the dilemma I face in analyzing path models using AMOS with missing data. I have a dataset with n = 116, missing rate = 6% (Missing at Random) for a full path model with about ...
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1answer
3k views

How to report the results of a complex path analysis?

I started with a model with 5 IVs and 7 DVs. This model had a poor fit (RMSEA = 0.405, CFI=0.760 or so). Most of my hypotheses were not confirmed, i.e. many regression coefficients were not ...
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2answers
3k views

Good Multivariate normality coefficient but suspicious univariate indices in AMOS, what to do?

We are conducting a research with 15 observed variables. Before starting a SEM model based on our data-set (of 531 cases), we tried to check for uni-variate & multivariate normality problems. The ...
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1answer
366 views

The results of EFA are different from those of theory, how to conduct CFA?

I have a dependent construct (attitude) which has at least 2 dimensions in theory (affective & behavioral). The scale measure adopted for this research is found to have 2 or 3 dimensions in ...
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1answer
1k views

amos: zero chi-quare and zero df confusion

I have five concepts in a theoretical model (animosity, ethnocentrism, religiosity, patriotism, satisfaction). The EFA result shows that there is only one actor for each construct: f1 (animosity) ...
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0answers
730 views

Can Amos SEM deal with binary dependent variable?

Hi I'm doing a SEM using AMOS. The outcome is the success of consumer satisfaction, which is measured by 2 questions. How satisfied are you? (1-7) How likely would like to recommend ? (1-10) If ...
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0answers
218 views

Bayesian SEM in AMOS - suggest resources?

I'm looking for resources regarding Bayesian SEM estimation using AMOS built-in procedures (I have ordered categorical data). Google gives some basic resources on theory, but not so much on ...
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0answers
183 views

Measurement Invariance

My colleagues and I are analyzing data by using multi-group SEM. Background We would like to know how individuals' commitment in a specific leisure activity influences their well-being. Specifically,...
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1answer
850 views

Invariance test after CFA model

Should I do invariance test after my CFA model was created and model fits were good? Should I do common methods bias, too? If so, how do you do these procedures in AMOS?
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1answer
874 views

CFA in Amos - Is my model correct for my analysis?

I want to do an CFA on a questionaire with four subscales in my sample, because I need to know, if they are independent from each other. I added all items to each subscale and then drew the ...
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1answer
1k views

Creating composite vairables in Structural Equation Modeling

I was wondering if you can help me. I want to run a pathway model using composite variables. Each composite variable is made up of 3 or 4 observed items. To create the composite variable to draw my ...
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132 views

Is this mediation or a simple path?

This is my model adapted from a study. I want to know whether I can only study it as a path analysis without studying mediation effect (1 $\longrightarrow$ 5 direct effect, as well as indirect effect) ...
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0answers
364 views

When fitting a model in Amos with ordinal data do I use Bollen stine adjustment or Baysian techniques?

I am trying to run a model validation/fit in AMOS using 18 items and three factors. The data is ordinal (1-4 scale) for each item. My data is non-normal both on a univariate and multivariate level. I ...
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0answers
743 views

Structural Equation Model design through AMOS, interpretation help

I have calculate the estimates through Maximum Likelihood procedure with model of six latent variables(presented in big ellipse) with respective observed variables (presented in rectangle) in AMOS 20....
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0answers
925 views

SPSS Amos Binary Outcome - Model Fit

I was just wondering if anybody could help me, I'm conducting a path analysis in SPSS Amos with a binary outcome. I've specified the variable as binary using Tools>Data Recode, I've then calculated ...
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1answer
4k views

How to create item parcels in SPSS Amos?

I am trying to run a SEM to see the causal relationship among latent variables. I ran the CFA and SEM using Amos, but I realized that the model is very complicated since one factor, which I originally ...
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2answers
1k views

Can AMOS be used to perform logistic regressions?

I need to compare 11 groups of data, for the same relationship. My first thoughts were to create 11 regression equations (one for each), and to compare parameters between groups. Problem is that ...
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2answers
11k views

What test should I perform on a structural equation model?

This model is a replication of an earlier study. After factor analysis in SPSS, I need to test my hypothesis (as you can see there are 7) all should give significant positive relation with each other. ...
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0answers
2k views

Covariance between factors in CFA (Amos)

I ran a Confirmatory Factor Analysis (CFA) in Amos and obtained a model with high covariance between the factors. James described this covariance in his video as alarming. What can I do to tackle ...
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1answer
2k views

How do I convert unstandardized RMR estimates into standardized RMR estimates?

I am having difficulty turning unstandardized RMR estimates from AMOS software output in a SEM into standardized estimates to enable suitable interpretation. Can someone give me advice on where to ...
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1answer
201 views

Why did fixing the covariance value cause AMOS to mis-estimate variance?

I have 100 data points on two variables, a and b. The correlation between the two is .3 and the SD is 1. When I run the ...
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3answers
321 views

Removing parameters in SEM when $\chi^2$ value and DF are 0

I am VERY new to SEM. I ran a model where I obtained 0 DF, so it could not compute the fit. So, I am left to cut out parameters. HOWEVER, I'm not sure where I can cut them in my particular case. I ...
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0answers
1k views

How to get confidence intervals for specific indirect effects in Amos?

Say I have an SEM model with 1 predictor variable (IV), 2 mediators (MV1, MV2) and 1 dependent variable (DV). Amos reports combined indirect effects for an IV on a DV. So the combined indirect effect ...
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0answers
3k views

Comparing SEM software apps: AMOS vs Stata vs Mplus vs R -— opinions please? [closed]

I have AMOS and Stata, and I have a colleague who has Mplus (and I'd rather not ask the colleague to run my data for me). I recently discovered that Stata has SEM capabilities. I looked online, but I ...
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1answer
2k views

Doing CFA on a known theoretical model, but having problems with convergent and discriminant validity

I did a survey based on the UTAUT model / theory with standard questions used. The N was 150. I am trying to validate the model for my survey with structural equation modeling (via the AMOS software). ...