Questions tagged [amos]

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

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14 views

How do I do discriminant validity

How do I do discriminant validity the same as in this paper Page #333 "A Technological Pedagogical Content Knowledge (TPACK) Scale for Geography Teachers in Senior High School" https://www....
37 views

Discriminant Validity - Chi Square Test

To check discriminant validity between two constructs for CFA in AMOS, I am using chi square difference test to confirm discriminant validity which "can be assessed for two estimated constructs ...
9 views

Does the Bollen-Stine procedure in AMOS affect fit indices?

My colleagues and I are working on a cross-cultural study and we attempt to obtain evidences of factorial validity by doing a measurement invariance analysis. Since our data failed to meet the ...
1 vote
19 views

Manual Calculation of SEM Factor Scores

I am trying to re-create the factor scores computed by AMOS for a latent construct. However, I get a very different answer when using the "Estimates" for the variables than when AMOS ...
21 views

Is having only degree of freedom left in SEM acceptable?

I was creating a latent variable with 4 indicator variables in AMOS. 2 of the variables have shared covariance) and was concerned about the "perfect fit" of CFI = 1 and RMSEA = 0. There is ...
297 views

Model selection in path analysis? AIC, BIC, other fit measures

Running some path analysis models. I have one model with 6 variables and another model with 5 variables. The 5 variable model has an AIC = 30 and a BIC = 80, R Squared = .30 The 6 variable model has ...
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168 views

CFA in AMOS vs. R: Different modification indices and standardized errors

I am doing a confirmatory fator analysis and I do obtain different results in SPSS AMOS vs. R/lavaan. All parameter estimates, df and standard errors are the same. Yet, standardized residuals and ...
1 vote
47 views

Latent Growth Curve Modeling and Model Choice

I am running an analysis of a clinical trial dataset. The research question is whether variable y influences the outcomes at each timepoint either as a main effect or in interaction with variable z (...
486 views

The covariance value is greater than 1 in Amos

I would like to ask about the path analysis I ran using Amos, the value of the covariance between two latent variables was greater than 1, is it acceptable? if not how can I fix it?
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104 views

Should allowing multiple DVs to covary in SEM influence beta coefficients?

I am running a replication study to test a model with 8 IVs and 3 DVs (all variables are continuous). In the initial study, I had a moderate sample (≈ 200), and thus relied upon multivariate multiple ...
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136 views

Why does this formula produce $p_{2}$ probabilities for Mahalanobis distances?

At the IBM website it is written that The p1 probabilities are standard probabilities of an observation from a multivariate normal distribution being that far or further from the centroid, ...
173 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 ...
54 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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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 ...
31 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 ...
165 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 ...
1k 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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60 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 ...
• 111
1 vote
1k 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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1 vote
104 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 ...
4k 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....
1 vote
380 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 ...
602 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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128 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 ...
• 1
218 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....
1 vote
132 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. ...
246 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 ...
4k 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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550 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 ...
77 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 ...
1 vote
51 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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1 vote
85 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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1 vote
589 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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1 vote
4k 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 ...
4k 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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1 vote
456 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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2k 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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857 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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1 vote
235 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 ...
1 vote
218 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,...
936 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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1 vote
956 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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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 ...
135 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) ...
1 vote
400 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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1 vote
894 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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1k 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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1 vote