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Showing 1-20 of 674 results
  1. Asymptotic Posterior Normality of Multivariate Latent Traits in an IRT Model

    The asymptotic posterior normality (APN) of the latent variable vector in an item response theory (IRT) model is a crucial argument in IRT modeling...

    Mia J. K. Kornely, Maria Kateri in Psychometrika
    Article Open access 11 February 2022
  2. The effect of latent and error non-normality on corrections to the test statistic in structural equation modeling

    In structural equation modeling, several corrections to the likelihood-ratio model test statistic have been developed to counter the effects of...

    Lisa J. Jobst, Max Auerswald, Morten Moshagen in Behavior Research Methods
    Article Open access 10 January 2022
  3. Detecting Latent Variable Non-normality Through the Generalized Hausman Test

    This paper extends the generalized Hausman test to detect non-normality of the latent variable distribution in unidimensional IRT models for binary...
    Lucia Guastadisegni, Irini Moustaki, ... Silvia Cagnone in Quantitative Psychology
    Conference paper 2023
  4. Examining the normality assumption of a design-comparable effect size in single-case designs

    What Works Clearinghouse (WWC, 2022 ) recommends a design-comparable effect size (D-CES; i.e., g AB ) to gauge an intervention in single-case...

    Li-Ting Chen, Yi-Kai Chen, ... Chao-Ying Joanne Peng in Behavior Research Methods
    Article 17 January 2023
  5. Pooling test statistics across multiply imputed datasets for nonnormal items

    In structural equation modeling, when multiple imputation is used for handling missing data, model fit evaluation involves pooling likelihood-ratio...

    Article 27 March 2023
  6. Partial Identification of Latent Correlations with Ordinal Data

    The polychoric correlation is a popular measure of association for ordinal data. It estimates a latent correlation, i.e., the correlation of a latent...

    Jonas Moss, Steffen Grønneberg in Psychometrika
    Article Open access 31 January 2023
  7. Frequentist Model Averaging in Structure Equation Model With Ordinal Data

    In practice, it is common that a best fitting structural equation model (SEM) is selected from a set of candidate SEMs and inference is conducted...

    Shaobo ** in Psychometrika
    Article Open access 29 January 2022
  8. Non-parametric Regression Among Factor Scores: Motivation and Diagnostics for Nonlinear Structural Equation Models

    We provide a framework for motivating and diagnosing the functional form in the structural part of nonlinear or linear structural equation models...

    Steffen Grønneberg, Julien Patrick Irmer in Psychometrika
    Article Open access 23 April 2024
  9. Assumptions of the Normal Error Regression Model

    This chapter describes the main assumptions that are made in the derivation of regression-based normative data, i.e., equality of the error...
    Chapter 2024
  10. A comparison of multiple imputation strategies to deal with missing nonnormal data in structural equation modeling

    Missing data and nonnormality are two common factors that can affect analysis results from structural equation modeling (SEM). The current study aims...

    Fan Jia, Wei Wu in Behavior Research Methods
    Article 29 August 2022
  11. Are your random effects normal? A simulation study of methods for estimating whether subjects or items come from more than one population by examining the distribution of random effects in mixed-effects logistic regression

    With mixed-effects regression models becoming a mainstream tool for every psycholinguist, there has become an increasing need to understand them more...

    Zachary N. Houghton, Vsevolod Kapatsinski in Behavior Research Methods
    Article 28 November 2023
  12. Optimizing Large-Scale Educational Assessment with a “Divide-and-Conquer” Strategy: Fast and Efficient Distributed Bayesian Inference in IRT Models

    With the growing attention on large-scale educational testing and assessment, the ability to process substantial volumes of response data becomes...

    Sainan Xu, **g Lu, ... Gongjun Xu in Psychometrika
    Article 30 May 2024
  13. Measures of Agreement with Multiple Raters: Fréchet Variances and Inference

    Most measures of agreement are chance-corrected. They differ in three dimensions: their definition of chance agreement, their choice of disagreement...

    Jonas Moss in Psychometrika
    Article Open access 08 January 2024
  14. Power Analysis for the Wald, LR, Score, and Gradient Tests in a Marginal Maximum Likelihood Framework: Applications in IRT

    The Wald, likelihood ratio, score, and the recently proposed gradient statistics can be used to assess a broad range of hypotheses in item response...

    Felix Zimmer, Clemens Draxler, Rudolf Debelak in Psychometrika
    Article Open access 27 August 2022
  15. The Asymptotic Distribution of Average Test Overlap Rate in Computerized Adaptive Testing

    The average test overlap rate is often computed and reported as a measure of test security risk or item pool utilization of a computerized adaptive...

    Edison M. Choe, Hua-Hua Chang in Psychometrika
    Article 01 July 2019
  16. Simultaneous estimation of the intermediate correlation matrix for arbitrary marginal densities

    A popular approach to the simulation of multivariate, non-normal data in the social sciences is to define a multivariate normal distribution first,...

    Oscar L. Olvera Astivia, Edward Kroc, Bruno D. Zumbo in Behavior Research Methods
    Article 31 May 2023
  17. A unified model-implied instrumental variable approach for structural equation modeling with mixed variables

    The model-implied instrumental variable (MIIV) estimator is an equation-by-equation estimator of structural equation models that is more robust to...

    Shaobo **, Fan Yang-Wallentin, Kenneth A. Bollen in Psychometrika
    Article Open access 07 June 2021
  18. Researcher degrees of freedom in statistical software contribute to unreliable results: A comparison of nonparametric analyses conducted in SPSS, SAS, Stata, and R

    Researcher degrees of freedom can affect the results of hypothesis tests and consequently, the conclusions drawn from the data. Previous research has...

    Cooper B. Hodges, Bryant M. Stone, ... Hannah M. Lindsey in Behavior Research Methods
    Article 11 August 2022
  19. Robust Inference for Mediated Effects in Partially Linear Models

    We consider mediated effects of an exposure, X on an outcome, Y , via a mediator, M , under no unmeasured confounding assumptions in the setting where...

    Oliver Hines, Stijn Vansteelandt, Karla Diaz-Ordaz in Psychometrika
    Article 18 May 2021
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