“…Scoring provided a mean scale score for each of the nine situations (or less if situations were not applicable for individual participants). It must be noted that self-report scales, including those measuring attention, are susceptible to noncredible responses and the importance of the assessment of symptom validity has been stressed consistently in original articles, consensus reports, and statement papers (Bush et al, 2005;Fuermaier et al, 2018;Heilbronner, Sweet, Morgan, Larrabee, & Millis, 2009;Tucha, Fuermaier, Koerts, Groen, & Thome, 2015). Therefore, to ensure validity of responses, six validity items were included to the questionnaire, representing one set of simple mathematical calculations (3 items, e.g., "10 þ 20 =?")…”