“…The S‐REF model proposed that psychological disorders were linked to maladaptive metacognitive beliefs, that is, beliefs that individuals hold about their own internal states (i.e., cognitions, thoughts and emotions) and about coping strategies that impact on it (Wells & Matthews, 1994, 1996). Metacognitive beliefs (also termed ‘metacognitions’) can be broadly divided into two main typologies (Spada et al, 2015; Wells & Matthews, 1994, 1996): (1) generic metacognitive beliefs about internal cognitive–affective experiences and their significance (e.g., ‘I need to control my thoughts at all times’; ‘I need to feel upset sometimes in order to function well’); (2) metacognitive beliefs about cognitive–affective self‐regulatory strategies, that in turn are divided into two main subtypes, that is, positive metacognitive beliefs pertaining to the benefits of engaging in specific strategies to control cognitive–affective state (e.g., ‘If I worry I will be prepared’) and negative metacognitive beliefs about the uncontrollability and danger of strategies to control cognitive–affective states and the detrimental derivates of employing such strategies (e.g., ‘I cannot control my ruminative thoughts’; ‘Feeling upset is uncontrollable’); consistently in this field of research, specific metacognitive beliefs related to problematic behaviours (e.g., alcohol use, smoking, gambling, binge eating) have been also identified (Hamonniere & Varescon, 2018; Palmieri et al, 2023a). Research undertaken over the last 15 years has underlined the possible role of metacognitive beliefs as etiological and maintenance mechanisms of psychological distress and a wide range of psychological disorders including mood disorders, anxiety disorders, obsessive–compulsive disorder, stress‐related disorder, eating disorders, psychotic disorders, the spectrum of addictive behaviours and personality disorders (Hamonniere & Varescon, 2018; Lenzo et al, 2020; Mansueto et al, 2016, 2019; Palmieri et al, 2021, 2023a; Rogier et al, 2021; Sellers et al, 2017; Spada et al, 2015, 2021; Sun et al, 2017).…”