2020
DOI: 10.1177/0013164420918392
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The Performance of the Semigeneralized Partial Credit Model for Handling Item-Level Missingness

Abstract: The semi-generalized partial credit model (Semi-GPCM) has been proposed as a unidimensional modeling method for handling not applicable scale responses and neutral scale responses, and it has been suggested that the model may be of use in handling missing data in scale items. The purpose of this study is to evaluate the ability of the unidimensional Semi-GPCM to aid in the recovery of person parameters from item response data in the presence of item-level missingness, and to compare the performance of the mode… Show more

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Cited by 6 publications
(7 citation statements)
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“…Hence, the model defined in Equation ( 12 ) can be interpreted as an IRT model for a variable that has three categories: Category 0 (observed incorrect): , , Category 1 (observed correct): , , and Category 2 (missing item response): , (see [ 43 , 69 , 70 ]).…”
Section: Statistical Models For Handling Missing Item Responsesmentioning
confidence: 99%
“…Hence, the model defined in Equation ( 12 ) can be interpreted as an IRT model for a variable that has three categories: Category 0 (observed incorrect): , , Category 1 (observed correct): , , and Category 2 (missing item response): , (see [ 43 , 69 , 70 ]).…”
Section: Statistical Models For Handling Missing Item Responsesmentioning
confidence: 99%
“…First and foremost, the aims of this article were not focused on the recovery of true item and person parameters, which would best be fulfilled through simulation methods, and were instead focused on demonstrating a process to use when true parameters are unknown. Large simulation studies have been conducted on multiple models for semiordered data, including the semi-PCM, for a variety of purposes well beyond that of neutral categories (Zhou & Huggins-Manley, 2018), and the results align with those in the smaller simulation study in Huggins-Manley et al (2017). Namely, the semi-PCM can generally recover true item and person parameters to a similar degree as the PCM, with the exception of slope and intercept parameters of the unordered response category.…”
Section: Resultsmentioning
confidence: 58%
“…Namely, the semi-PCM can generally recover true item and person parameters to a similar degree as the PCM, with the exception of slope and intercept parameters of the unordered response category. In comparison with the NRM, the ordered category item parameters are generally recovered better by the semi-PCM than are nominal category item parameters by the semi-PCM or NRM (Zhou & Huggins-Manley, 2018). These simulation results are to be expected as the PCM, semi-PCM, and NRM are nested models, with the PCM being the least complex and the NRM being the most complex.…”
Section: Resultsmentioning
confidence: 97%
“…Second, it can be cumbersome for Monte Carlo simulation studies to simulate step parameters or crossover parameters since a value for one parameter may affect whether a value for another parameter is realistic (e.g., leading to cross-over of CRFs that are atypical). Thus, sometimes a very small variance or limited range (e.g., Zhou & Huggins-Manley, 2020) or even fixed values (e.g., Kim & Paek, 2017) for each parameter is used, which adversely affects generalizability and makes it difficult to study how variability in CRFs may affect the performance of studied approaches.…”
Section: Nominal Generalized Partial Credit and Partial Credit Modelsmentioning
confidence: 99%