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Anales de Psicología
versión On-line ISSN 1695-2294versión impresa ISSN 0212-9728
Resumen
GONZALEZ, Bárbara; NOVO, Rosa y FARRAJOTA, Pilar. Detecting underreport in real-world assessment contexts: the utility of multiple-scale indicators. Anal. Psicol. [online]. 2022, vol.38, n.3, pp.555-564. Epub 16-Oct-2023. ISSN 1695-2294. https://dx.doi.org/10.6018/analesps.502511.
Underreport of symptoms and personality characteristics is a relevant problem for psychological assessment. Nevertheless, most of the studies in this field use simulation designs. This study aims at comparing underreport prevalence in real-world samples of different contexts, using single-scale and multiple-scale underreport indicators from the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) to identify the best one and assess its implications on the clinical scales scores. Using a Differential Prevalence Group design, 1438 participants were assessed with the MMPI-2, grouped in three samples from two non-clinical contexts (community and organizational) and one clinical context. The organizational sample had the highest prevalence of underreporting. Overall, multiple-scale indicator LKS ≥ T65 performed better at distinguishing these samples. Analysis of variance revealed that LKS ≥ T65 was also the only indicator in which participants doing underreport consistently varied from honest responders in the clinical scales scores, while also having lower probability of producing both type I and II errors. The existence of underreport has clear implication on the clinical scales results. The multiple-scale indicator is the most robust and should be used in the detection of underreporting. This is a relevant implication for psychological assessment in different contexts, mainly in the organizational context.
Palabras clave : Underreport; MMPI-2; Validity indicators; Organizational context assessment.