A note on residual M-distances for identifying aberrant response patterns.
Br J Math Stat Psychol
; 73(1): 164-169, 2020 02.
Article
em En
| MEDLINE
| ID: mdl-30756381
ABSTRACT
Although a statistical model might fit well to a large proportion of the individuals of a random sample, some individuals might give 'unusual' responses that are not well explained by the hypothesized model. If individual responses are given as continuous response vectors, M-distances can be used to produce real valued indicators of how well an individual's response vector corresponds to a covariance structure implied by a psychometric model. In this note, we focus on the so-called one-factor model. Two M-distances, dsi and dri , which are sensitive to different aspects of the assumed factor model, have been proposed. While one of the M-distances, dri , has been derived based on Bartlett factor scores, in this note we show that the second M-distance, dsi , can be derived in an analogous fashion based on Thomson factor scores.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Psicometria
/
Modelos Estatísticos
Tipo de estudo:
Prognostic_studies
/
Risk_factors_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article