Resumen
Antecedentes: Los instrumentos psicométricos de validez de síntomas (SVTs) pueden ser vulnerables a la preparación, lo que puede afectar negativamente a su rendimiento. Nuestro objetivo evaluar el impacto que diferentes tipos de preparación pueden tener en la sensibilidad del Inventario Estructurado de Simulación de Síntomas (SIMS). Método: Se utilizó un diseño de simulación con 232 adultos no clínicos divididos en cinco condiciones de simulación y 58 pacientes con sintomatología ansioso-depresiva derivada de un accidente de circulación. Todos los simuladores recibieron un escenario básico y, además, el segundo grupo fue instruido sobre la sintomatología a presentar, el tercero fue advertido sobre el riesgo de exagerar su presentación, el cuarto recibió una combinación de los dos grupos anteriores y el quinto recibió un entrenamiento específico sobre SVTs. Resultados: La capacidad discriminativa del SIMS fue más elevada en el grupo de escenario básico e información de síntomas, disminuyendo significativamente en el grupo de entrenamiento sobre SVTs. Conclusiones: El SIMS parece no verse afectado severamente por las diferentes formas de coaching, no obstante, la preparación específica sobre el test disminuye su rendimiento.
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