“…Tang and DeRubeis () were the first to quantitatively define positive discontinuous symptom changes throughout the course of treatment and found that sudden gains were associated with better treatment outcome at termination and follow‐up. Following research confirmed these results and showed that sudden gains are a frequent phenomenon among patients with different disorders like depression (Hardy et al, ; Lutz et al, ; Tang, DeRubeis, Beberman, & Pham, ), social anxiety disorder (Bohn, Aderka, Schreiber, Stangier, & Hofmann, ; Hofmann, Schulz, Meuret, Moscovitch, & Suvak, ), generalized anxiety disorder (Deschênes & Dugas, ), posttraumatic stress disorder (Aderka, Appelbaum‐Namdar, Shafran, & Gilboa‐Schechtman, ; Doane, Feeny, & Zoellner, ; Krüger et al, ), or obsessive‐compulsive disorder (Aderka, Nickerson, Bøe, & Hofmann, ). A meta‐analysis also showed that the occurrence of sudden gains within a therapy predicts significantly better outcomes at the end of therapy (Aderka et al, ).…”