2007
DOI: 10.1111/j.1745-3984.2007.00040.x
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Skills Diagnosis Using IRT‐Based Latent Class Models

Abstract: This article describes a latent trait approach to skills diagnosis based on a particular variety of latent class models that employ item response functions (IRFs) as in typical item response theory (IRT) models. To enable and encourage comparisons with other approaches, this description is provided in terms of the main components of any psychometric approach: the ability model and the IRF structure; review of research on estimation, model checking, reliability, validity, equating, and scoring; and a brief revi… Show more

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Cited by 68 publications
(62 citation statements)
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“…The results are provided in Table 4. Using the MAD cutoff values for levels of ICC recovery described earlier, (a) there are two items (11 and 29) with very good recovery, MAD<0.02, (b) 13 items (3,6,7,10,14,16,17,21,24,27,32,35,39) with good recovery, 0.02 ≤ MAD<0.05, (c) seven items (12,13,18,26,28,36,37) with somewhat good recovery, 0.05 ≤ MAD<0.07), (d) six items (2,15,19,22,25,34) with somewhat poor recovery, 0.07 ≤ MAD<0.10, (e) and 11 items (1,4,5,8,9,20,23,30,31,33,38) The presence of items with unsatisfactory (somewhat poor or poor) ICC recovery is not a surprise because it is not realistic to expect that the small number of attributes with relatively high level of generality, used in this study, would be sufficient to fully explain the conditional probabilities of correct response for all test items. Nevertheless, the ICC fit and misfit of STEP-RC items provide information in line with the purpose of the present study; (more details on that matter are provided in the discussion part).…”
Section: Examining the Validity Of Step-rc Attributesmentioning
confidence: 99%
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“…The results are provided in Table 4. Using the MAD cutoff values for levels of ICC recovery described earlier, (a) there are two items (11 and 29) with very good recovery, MAD<0.02, (b) 13 items (3,6,7,10,14,16,17,21,24,27,32,35,39) with good recovery, 0.02 ≤ MAD<0.05, (c) seven items (12,13,18,26,28,36,37) with somewhat good recovery, 0.05 ≤ MAD<0.07), (d) six items (2,15,19,22,25,34) with somewhat poor recovery, 0.07 ≤ MAD<0.10, (e) and 11 items (1,4,5,8,9,20,23,30,31,33,38) The presence of items with unsatisfactory (somewhat poor or poor) ICC recovery is not a surprise because it is not realistic to expect that the small number of attributes with relatively high level of generality, used in this study, would be sufficient to fully explain the conditional probabilities of correct response for all test items. Nevertheless, the ICC fit and misfit of STEP-RC items provide information in line with the purpose of the present study; (more details on that matter are provided in the discussion part).…”
Section: Examining the Validity Of Step-rc Attributesmentioning
confidence: 99%
“…CDMs have been developed in a variety of frameworks such as (a) item response theory (IRT), [17][18][19], (b) rule space methodology [14,[20][21][22], (c) latent class modeling [6,9,[23][24][25], (d) IRT-based latent class modeling [26][27][28], and (e) Bayesian modeling [29]. Although practical applications of CDMs exist in different areas of assessment, such as mathematics [30][31][32][33], language testing [8,[34][35][36][37], and psychology [12,16], the current practice is still behind theoretical and methodological developments in the field of cognitive diagnosis modeling.…”
Section: Introductionmentioning
confidence: 99%
“…en effet, ce sujet a fait l'objet du numéro spécial à l'hiver 2007 du Journal of Educational Measurement (almond, 2007 ;Bolt, 2007 ;diBello & stout, 2007 ;Gierl, 2007 ;henson, templin & douglas, 2007 ;roussos, templin & henson, 2007 ;stout, 2007). Peu de temps après, un article synthèse de rupp et templin (2008) est publié dans le dernier numéro de l'année 2008 de la revue Measurement : Interdisciplinary Research & Perspective, le reste de ce numéro étant constitué par trois articles commentaires qui lui sont reliés (Gierl, 2008 ;Karelitz, 2008 ;leighton, 2008).…”
Section: Este Artigo Pretende Definir Os Modelos De Classificação Diaunclassified
“…la validité externe des classifications diagnostiques obtenues doit être étudiée en comparant les résultats à d'autres sources d'information (Bolt, 2007 ;haberman & von davier, 2007). l'équivalence des diagnostics issus des mêmes données mais de modèles différents, ou de données provenant de différents tests doit également être étudiée (Maris & Bechger, 2009 ;roussos et al, 2007 ;sinharay & haberman, 2009). enfin, la validité interne des modèles doit faire l'objet d'études approfondies afin de s'assurer de la qualité des classifications (roussos et al, 2007 ; sinharay & haberman, 2009).…”
Section: Regard Critique Et Points Sensiblesunclassified
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