Spanish adaptation of the Green Paranoid Thought Scales

• Autores: Inmaculada Ibáñez-Casas, Pedro Femia Marzo, José Luis Padilla, Catherine E. L. Green, Enrique de Portugal Fernández del Rivero, Jorge Antonio Cervilla Ballesteros
• Localización: Psicothema, ISSN-e 1886-144X, ISSN 0214-9915, Vol. 27, Nº. 1, 2015, págs. 74-81
• Idioma: inglés
• Títulos paralelos:
  • Adaptación española de las Escalas de Pensamiento Paranoide de Green
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• Dialnet Métricas: 2 Citas
• Resumen
  • español

    Antecedentes: el objetivo del presente estudio fue adaptar y obtener evidencias de validez de la versión española de las escalas de pensamiento paranoide de Green (S-GPTS). Método: 191 participantes españoles respondieron al S-GPTS, al Inventario de Delirios de Peters (PDI) y a medidas de psicopatología. Resultados: el Análisis de Componentes Principales a partir de la matriz de correlaciones policóricas identificó dos factores que explicaban el 71% de la varianza acumulada. El coeficiente a de Cronbach para el S-GPTS y sus subescalas fue superior a .90 en ambos grupos. El valor del área bajo la curva ROC fue más alto para el S-GPTS (.898) que para el PDI (.859). El punto de corte que mejor discriminaba entre el grupo clínico y el no clínico fue 92 (97,35% de sensibilidad, 65% de especificidad). Las puntuaciones del S-GPTS correlacionaron positivamente con el PDI y con medidas de ansiedad y depresión. Conclusiones: el S-GPTS posee propiedades psicométricas adecuadas para proporcionar una medida válida de la ideación delirante en población española.

  • English

    Background: The aim of this study was to adapt and obtain validity evidence of the Spanish Green Paranoid Thought Scales (S-GPTS). Method: 191 Spanish people responded to S-GPTS, Peters Delusions Inventory (PDI), and measures of psychopathology. Results: Principal Component Analyses on the polychoric correlation matrix identified two factors accounting for 71.0% of the cumulative variance. Cronbach alphas for S-GPTS total and its subscales were above .90 in clinical and non-clinical group. The value of the area under the receiver operating characteristic curve was higher for the S-GPTS (.898), than for the PDI (.859). The best S-GPTS threshold to discriminate between cases and non-cases was 92 (sensitivity, 97.35%; specificity, 65%). S-GPTS scores positively correlated with PDI and measures of anxiety and depression. Conclusion: The S-GPTS has adequate psychometric properties to provide valid measures of delusional ideation in a Spanish population.

• Referencias bibliográficas
  • American Psychiatric Association (2013). Diagnostic and Statistical Manual of Mental Disorders (5th ed.). Arlington, VA: American Psychiatric...
  • Barch, D.M., Bustillo, J., Gaebel, W., Gur, R., Heckers, S., Malaspina, D., et al. (2013). Logic and justification for dimensional assessment...
  • Brugha, T., & Cragg, D. (1990). The List of Threatening Experiences-the Reliability and Validity of a Brief Life Events Questionnaire....
  • Curran, C., Byrappa, N., & McBride, A. (2004). Stimulant psychosis: Systematic review. British Journal of Psychiatry, 185, 196-204.
  • Chapman, J.P., Chapman, L.J., & Kwapil, T.R. (1995). Scales for the measurement of schizotypy. In A. Raine, T. Lencz & S.A. Mednick...
  • Fenigstein, A., & Vanable, P.A. (1992). Paranoia and self-conciousness. Journal of Personality and Social Psychology, 62, 129-138.
  • Fonseca-Pedrero, E, Lemos-Giráldez, S., Paino, M., Santarén-Rosell, M., Sierra-Baigrie, S., & Ordóñez-Camblor, N. (2011). Assessment instruments...
  • Fonseca-Pedrero, E, Lemos-Giráldez, S., Paino, M., Sierra-Baigrie, S., Villazón-García, U., & Muñiz, J. (2009). Experiencias psicóticas...
  • Fonseca-Pedrero, E, Paino, M., Lemos-Giráldez, S., & Muñiz, J. (2012). Validation of the Community Assessment Psychic Experiences-42 (CAPE-42)...
  • Fonseca-Pedrero, E, Paino, M., Santarén-Rosell, M., Lemos-Giráldez, S., & Muñiz, J. (2012). Psychometric properties of the Peters et al.,...
  • Foster, C., Startup, H., Potts, L., & Freeman, D. (2010). A randomised controlled trial of a worry intervention for individuals with persistent...
  • Freeman, D., & Fowler, D. (2009). Routes to psychotic symptoms: Trauma, anxiety and psychosis-like experiences. Psychiatry Research, 169,...
  • Freeman, D., & Garety, P.A. (2000). Comments on the content of persecutory delusions: Does the definition need clarification? British...
  • Freeman, D., Garety, P.A., Bebbington, P.E., Smith, B., Rollinson, R., Fowler, D., Kuipers, E., Ray, K., & Dunn, G. (2005). Psychological...
  • Freeman, D., McManus, S., Brugha, T., Meltzer, H., Jenkins, R., & Bebbington, P. (2011). Concomitants of paranoia in the general population....
  • Freeman, D., Pugh, K., Vorontsova, N., Antley, A., & Slater, M. (2010). Testing the continuum of delusional beliefs: An experimental study...
  • Freeman, D. (2007). Suspicious minds: The psychology of persecutory delusions. Clinical Psychology Review, 27, 425-457.
  • Garety, P.A., & Hemsley, D.R. (1987). Characteristics of delusional experience. European Archives of Psychiatry and Clinical Neuroscience,...
  • Gracie, A., Freeman, D., Green, S., Garety, P.A., Kuipers, E., Hardy, A., Ray, K., Dunn, G., Bebbington, P., & Fowler, D. (2007). The...
  • Green, C.E.L., Freeman, D., Kuipers, E., Bebbington, P., Fowler, D., Dunn, G., & Garety, P. (2008). Measuring ideas of persecution and...
  • Ibáñez-Casas, I, & Cervilla, J.A. (2012). Neuropsychological research in delusional disorder: A comprehensive review. Psychopathology,...
  • Janssen, I., Krabbendam, L., Bak, M., Hanssen, M., Vollebergh, W., de Graaf, R., & Van Os, J. (2004). Childhood abuse as a risk factor...
  • Kaymaz, N., & van Os, J. (2010). Extended psychosis phenotype-yes: Single continuum-unlikely. Psychological Medicine, 40, 1963-1966.
  • Lecrubier, Y., Sheehan, D.V., Weiller, E., Amorim, P., Bonora, I., Sheehan, K.H., et al. (1997). The Mini International Neuropsychiatric Interview...
  • Linscott, R.J., & van Os, J. (2013). An updated and conservative systematic review and meta-analysis of epidemiological evidence on psychotic...
  • López-Ilundain, JM., Pérez-Nievas, F., Otero, M., & Mata, I. (2006). Peter’s delusions inventory in Spanish general population: Internal...
  • Lorenzo-Seva, U, & Ferrando, P.J. (2006). FACTOR: A computer program to fi t the exploratory factor analysis model. Behavioral Research...
  • Martín Andrés, A., & Femia Marzo, P. (2004). Delta: A new measure of agreement between two raters. British Journal of Mathematical and...
  • Martín Andrés, A., & Femia Marzo, P. (2008). Chance-corrected measures of reliability and validity in 2 × 2 Tables. Communications in...
  • Muñiz, J., Elosua, P., & Hambleton, R.K. (2013). Directrices para la traducción y adaptación de los tests: segunda edición [International...
  • Peters, E.R., Joseph, S., & Garety, P.A. (1999). The assessment of delusions in normal and psychotic populations: Introducing the PDI...
  • Ros-Morente, A, Rodríguez-Hansen, G., Vilagra-Ruiz, R., Kwapil, T.R., & Barrantes-Vidal, N. (2010). Adaptation of the Wisconsin Scales...
  • Ros-Morente, A, Vilagra-Ruiz, R., Rodríguez-Hansen, G., Wigman, J.H., & Barrantes-Vidal, N. (2011). Process of adaptation to Spanish of...
  • Sheenan, D.V., Lecrubier, Y., Hergueta, T., Ferrando, L., & Soto, M. (1998). The Mini-International Neuropsychiatric Interview (M.I.N.I.):...
  • Sheehan, D.V., Lecrubier, Y., Sheehan, K.H., Janavs, J., Weiller, E., Keskiner, A., et al. (1997). The validity of the Mini International...
  • Stefanis, N., Hanssen, M., Smirnis, N., Avramopoulos, D., Evdokimidis, I., Verdoux, H., et al. (2002). Evidence that three dimensions of psychosis...
  • Surtees, P.G. (1980). Social support, residual adversity and depressive outcome. British Journal of Psychiatry, 15, 71-80.
  • Timmerman, M.E., & Lorenzo-Seva, U. (2011). Dimensionality assessment of ordered polytomous items with parallel analysis. Psychological...
  • van Os, J., Kenis, G., & Rutten, B.P.F. (2010). The environment and schizophrenia. Nature, 468, 203-212.