“…It consists of an abuse potential scale (77 items), six factor scales (e.g., distress, rigidity, unhappiness, various interpersonal problems), and three validity scales to detect if respondents answered randomly, faked good (i.e., denied problems), or faked bad (i.e., exaggerated problems). Adequate psychometric properties, including construct validity, internal consistency, and stability over time, have been demonstrated across numerous samples (see Milner, 2004 , for a review, but see Voorthuis et al, 2014 ).…”