The SIMS1 is a two option self-report measure to screen for over-reporting of mental symptoms and consists of a 75 items which are divided into five subscales (affective disorders; amnestic disorders; low intelligence; neurological impairment; psychosis). It includes items asking for atypical symptoms (e.g., “Walking is difficult for me because of my problems with balance”). Answers indicative of over-reporting are summed to obtain a total SIMS score (α = 0.73).