2020
DOI: 10.1080/10705511.2020.1766357
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The Impact of Unmodeled Heteroskedasticity on Assessing Measurement Invariance in Single-group Models

Abstract: This study compared two single-group approaches for assessing measurement invariance across an observed background variable: restricted factor analysis (RFA) and moderated nonlinear factor analysis (MNLFA). In MNLFA models, heteroskedasticity can be accounted for by allowing the common-factor variance and the residual variances to differ as a function of the background variable. In contrast, RFA models assume homoskedasticity of both the common factor and the residuals. We conducted a simulation study to exami… Show more

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Cited by 10 publications
(13 citation statements)
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“…This approach is a well-performing alternative to latent moderated structural equations (LMS, which are only available in Mplus; Muthén and Muthén, 2012). PI is also robust to heteroskedasticity (Kolbe et al, 2020), which obtains similar power, but lower Type 1 error rates than LMS (Kolbe and Jorgensen, 2019), can be implemented into any software program, and provides more traditional SEM fit indices that are not available when using LMS in Mplus (Kolbe and Jorgensen, 2018). Following the recommendations of , the component approach inspired joint-significance testing of multiple parameter estimates was applied to identify the presence of the indirect effect in moderated mediation.…”
Section: Coworkers' Training Participationmentioning
confidence: 99%
“…This approach is a well-performing alternative to latent moderated structural equations (LMS, which are only available in Mplus; Muthén and Muthén, 2012). PI is also robust to heteroskedasticity (Kolbe et al, 2020), which obtains similar power, but lower Type 1 error rates than LMS (Kolbe and Jorgensen, 2019), can be implemented into any software program, and provides more traditional SEM fit indices that are not available when using LMS in Mplus (Kolbe and Jorgensen, 2018). Following the recommendations of , the component approach inspired joint-significance testing of multiple parameter estimates was applied to identify the presence of the indirect effect in moderated mediation.…”
Section: Coworkers' Training Participationmentioning
confidence: 99%
“…In almost all MNLFA models in this tutorial, the common-factor means, common-factor variances, common-factor covariance, and indicators’ residual variances are allowed to vary as a function of gender and age 2 . Such models are also referred to as heteroskedastic MNLFA models (see Kolbe et al, 2021).…”
Section: Tutorialmentioning
confidence: 99%
“…The difference between these methods and MGCFA is that the data are aggregated over the groups. We therefore refer to these methods as single-group methods (Kolbe et al, 2021), the most flexible of which is MNLFA, described below. For details about the differences between the single-group methods see Bauer (2017) and Kolbe et al (2021).…”
Section: Introductionmentioning
confidence: 99%
“…In contrast, LMS does not yield the standard test statistic or fit indices used to evaluate data-model correspondence, and fit indices have only recently been proposed for MCMC estimation of SEMs [32] and incorporated into blavaan and Mplus [33]. Product indicators can also accommodate heteroskedasticity in situations where LMS assumes homoskedasticity [34]. There are also some disadvantages, such as product indicators are assumed to be continuous by virtue of multiplying their values, whereas LMS and MCMC are flexible enough to incorporate ordinal indicators.…”
Section: Interaction Among Latent Variablesmentioning
confidence: 99%
“…However, perfectly symmetric data are rare in practice, and with the availability of nonnormality corrections to SEs and test statistics [38], it may be safer to freely estimate the factor covariances with the latent interaction. Doing so can also account for unmodeled heteroskedasticity of factor scores [34].…”
Section: Product-indicator Approachesmentioning
confidence: 99%