Article

Construcción de una escala de depresión con el modelo de Rasch

Psicothema, ISSN 0214-9915, Vol. 19, Nº. 3, 2007, pags. 515-521
Source: OAI

ABSTRACT El objetivo de este trabajo es evaluar las propiedades psicométricas de un cuestionario compuesto por diferentes indicadores de depresión en población joven española con el objetivo de mejorar su calidad técnica. Participaron 310 sujetos de entre 18 y 24 años, con estudios de nivel básico, medio y superior. Los datos se analizaron con el modelo de Rasch. Se ha encontrado que el ajuste medio de los ítems al modelo es alto, y que también lo es la fiabilidad promedio de las estimaciones de los ítems (.97) y de las personas (.88). Tras eliminar los cuatro ítems que desajustan y los doce que muestran DIF asociado al sexo, la escala resultante permite una medición objetiva de la depresión. Con esta última escala se encuentran las previstas diferencias asociadas al sexo.

0 Bookmarks
 · 
65 Views
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: A systematic review was carried out with the objective of learning the Psychometric properties of measures of emotion recognition and expression. They were selected in two steps: first, a deductive one in which 721 abstracts from Scopus and PsycInfo were analyzed; and second, the inductive one, by using the ad hoc categories from the previous analysis. The instruments from the 36 selected papers were coded by sample, assessment type, and psychometric analyses. Results show that most of the measures come from just one test and that modern test models such as Rasch-based ones are never found. It is concluded that Affective Neuropsychology advances have not been accompanied by the construction of standardized measurement instruments to properly quantify individual differences.
    Anales de Psicologia 10/2012; 28(3):978-985.
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: El objetivo de este trabajo fue exponer los factores que explicanla escasa aplicación de la Teoría de Respuesta al Ítem(TRI) en tests de ejecución típica. Una revisión exploratoriade la literatura psicométrica permitió identificar dos factores:el histórico, que remite a problemas en la difusión de la TRIpor fuera del campo educativo y a las demandas sociales queprivilegiaron su aplicación en el contexto educativo; y el factorasociado a la aplicación, que describe los obstáculos que enla actualidad dificultan la puesta en práctica de los modelosen tests de ejecución típica. Aunque ambos factores fueronrelativamente superados, el impacto de estos en la produccióncientífica del área es aún significativo.
    Revista Colombiana de Psicología. 01/2010;
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Comparing the height of males and females would be impossible if the measuring device did not have the same properties for both populations. In a similar way, the cognitive level of diverse groups of patients should not be compared if the test has different measurement properties for these groups. Lack of Differential Item Functioning (DIF) is a condition for measurement invariance between populations. The most internationally used screening test for dementia, the MMSE (or Mini-mental State Examination), has been analysed using an advanced psychometric technique, the Rasch Model. The objective was to determine the invariance of mini-mental measurements from diverse groups: Parkinson's disease patients, Alzheimer's type dementia and normal subjects. The hypothesis was that the scores would not show DIF against any of these groups. The total sample was composed of 400 subjects. Significant differences between groups were found. However, the quantitative comparison only makes sense if no evidence against measurement invariance was found: given the kind of items showing DIF against Parkinson's disease patients, the MMSE seems to underestimate the cognitive level of these patients. Despite the extended use of this test, 11 items out of 30 show DIF and consequently score comparisons between groups are not justified.
    Neurologia 03/2011; 26(8):474-80.

Full-text (3 Sources)

View
44 Downloads
Available from
Jun 2, 2014