Methodology Review
Assessing Unidimensionality of Tests and ltenls
Dados Bibliográficos
| ID | 23344404 |
|---|---|
| Autores | John Hattie (0000-0003-3873-4854, University of New England, ARMIDALE, NSW 2351, Australia, autor correspondente) |
| Ano | 1985 |
| Volume | 9 |
| Fascículo | 2 |
| Páginas | 139-164 |
| Data de publicação | 1985-06-01 |
| Peer Reviewed | Sim |
| Open Access | Sim |
| Tipo | ARTICLE |
| Periódico | Applied Psychological Measurement (JOURNAL) |
| Identificadores do periódico | ISSN: 0146-6216 • E-ISSN: 1552-3497 |
| Editora | SAGE Publications (PUBLISHER • US) |
| DOI | 10.1177/014662168500900204 |
| OpenAlex | W2121724061 |
| Idioma | EN |
| Citações recebidas | 177 |
| Referências citadas | 94 |
Various methods for determining unidimensionality are reviewed and the rationale of these methods is as sessed. Indices based on answer patterns, reliability, components and factor analysis, and latent traits are reviewed. It is shown that many of the indices lack a rationale, and that many are adjustments of a previous index to take into account some criticisms of it. After reviewing many indices, it is suggested that those based on the size of residuals after fitting a two- or three-parameter latent trait model may be the most useful to detect unidimensionality. An attempt is made to clarify the term unidimensional, and it is shown how it differs from other terms often used inter changeably such as reliability, internal consistency, and homogeneity. Reliability is defined as the ratio of true score variance to observed score variance. Inter nal consistency denotes a group of methods that are intended to estimate reliability, are based on the vari ances and the covariances of test items, and depend on only one administration of a test. Homogeneity seems to refer more specifically to the similarity of the item correlations, but the term is often used as a synonym for unidimensionality. The usefulness of the terms in ternal consistency and homogeneity is questioned. Uni dimensionality is defined as the existence of one latent trait underlying the data.
Consistency (knowledge bases) · Econometrics · Homogeneity (statistics) · Reliability (semiconductor) · Statistics · Trait · Advanced Statistical Modeling Techniques · Computer Science · Mathematics · Psychology · Psychometric Methodologies and Testing · Reliability and Agreement in Measurement
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The Organizational Learning Survey
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Ergo
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The normal curve and the attenuation paradox in test theory
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| Obras citantes distintas | 177 |
|---|---|
| Citações por ano | 4,54 |
| Intervalo de citações | 1987 - 2026 (40) |
| Velocidade de citação | current |
| Altamente citado | Sim |
| Tipos de citação | Neutras: 166 |