“…Typically, cognitive distortions are conceived of as non-normative belief structures that include justifications and rationalisations for sexual offending, and are regarded as a dynamic risk factor (Gannon, Ward, & Collie, 2007). However, Ó Ciardha and Gannon (2011) noted that "cognitive distortions" has been applied to a multitude of different constructs including "maladaptive beliefs" (Ward, Hudson, Johnston, & Marshall, 1997), "defensiveness" (Rogers & Dickey, 1991), "rationalisations" (Neidigh & Krop, 1992), "incorrect or deviant cognitive practices" (Ward & Casey, 2010), and "etiological cognitions" (Ó Ciardha & Gannon, 2011). Although definitions may play a larger role in the conceptualisation of scientific phenomena than perhaps they should (Haig, 2012), the degree of variation in how 'cognitive distortions' are defined poses a significant problem for developing valid measures of dynamic risk.…”