References
- Aderka, I. M., Nickerson, A., Boe, H. J., & Hofmann, S. G. (2012). Sudden gains during psychological treatments of anxiety and depression: A meta-analysis. Journal of Consulting and Clinical Psychology, 80(1), 93–101. doi:10.1037/a0026455
- American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (DSM-5). Washinton, DC: Author.
- Beck, A., Ward, C., & Mendelson, M. (1961). Beck Depression Inventory (BDI). Archives of General Psychiatry, 4(6), 561–571. doi:10.1001/archpsyc.1961.01710120031004
- Beck, A. T., Epstein, N., Brown, G., & Steer, R. A. (1988). An inventory for measuring clinical anxiety: Psychometric properties. Journal of Consulting and Clinical Psychology, 56(6), 893–897.
- Calugi, S., Milanese, C., Sartirana, M., El Ghoch, M., Sartori, F., Geccherle, E., … Dalle Grave, R. (2016). The eating disorder examination questionnaire: Reliability and validity of the Italian version. Eating and Weight Disorders. doi:10.1007/s40519-016-0276-6
- Calugi, S., Ricca, V., Castellini, G., Lo Sauro, C., Ruocco, A., Chignola, E., … Dalle Grave, R. (2015). The eating disorder examination: Reliability and validity of the Italian version. Eating and Weight Disorders, 20(4), 505–511. doi:10.1007/s40519-015-0191-2
- Cartwright, A., Cheng, Y. P., Schmidt, U., & Landau, S. (2017). Sudden gains in the outpatient treatment of anorexia nervosa: A process-outcome study. International Journal of Eating Disorders, 50(10), 1162–1171. doi:10.1002/eat.22773
- Cavallini, A., & Spangler, D. (2013). Sudden gains in cognitive-behavioral therapy for eating disorders. International Journal of Cognitive Therapy, 6(3), 292–310. doi:10.1521/ijct.2013.6.3.292
- Collins, L. M., & Coles, M. E. (2017). Sudden gains in exposure therapy for obsessive-compulsive disorder. Behaviour Research and Theraapy, 93, 1–5. doi:10.1016/j.brat.2017.03.003
- Dalle Grave, R. (2012). Intensive cognitive behavior therapy for eating disorders. New York, NY: Nova, Hauppauge.
- Dalle Grave, R. (2013). Multistep cognitive behavioral therapy for eating disorders. Theory, practice and clinical cases. Maryland, MD: Jason Aronson.
- De Leo, D., Frisoni, G. B., Rozzini, R., & Trabucchi, M. (1993). Italian community norms for the brief symptom inventory in the elderly. British Journal of Clinical Psychology, 32(Pt 2), 209–213.
- Derogatis, L. R., & Melisaratos, N. (1983). The brief symptom inventory: An introductory report. Psychological Medicine, 13(3), 595–605.
- Dotti, A., & Lazzari, R. (1998). Validation and reliability of the Italian EAT-26. Eating and Weight Disorders, 3(4), 188–194.
- Fairburn, C. G., & Beglin, S. J. (2008). Cognitive behavior therapy and eating disorders. In C. G. Fairburn (Ed.), Eating disorder examination questionnaire (EDE-Q 6.0) (pp. 309–313). New York, NY: Guiford Press.
- Fairburn, C. G., Cooper, Z., & O’Connor, M. (2008). Eating Disorder Examination (Edition 16.0D). In C. G. Fairburn (Ed.), Cognitive Behavior Therapy and Eating Disorders (pp. 265–308). New York, NY: Guilford Press.
- Garner, D. M., Olmsted, M. P., Bohr, Y., & Garfinkel, P. E. (1982). The eating attitudes test: Psychometric features and clinical correlates. Psychological Medicine, 12(4), 871–878.
- Gorusch, R. L. (1983). Factor analysis (2nd ed.). Hillsdale, NJ: Lawrence Erlbaum Associates.
- Kaiser, H. F. (1974). An index of factorial simplicity. Psychometrika, 39, 31–36. doi:10.1007/BF02291575
- Kline, P. (1994). An easy guide to factor analysis. New York, NY: Routledge.
- Konig, J., Karl, R., Rosner, R., & Butollo, W. (2014). Sudden gains in two psychotherapies for posttraumatic stress disorder. Behaviour Research and Therapy, 60, 15–22. doi:10.1016/j.brat.2014.06.005
- MacDonald, D. E., Trottier, K., McFarlane, T., & Olmsted, M. P. (2015). Empirically defining rapid response to intensive treatment to maximize prognostic utility for bulimia nervosa and purging disorder. Behavior Research and Therapy, 68, 48–53. doi:10.1016/j.brat.2015.03.007
- Nogueira-Arjona, R., Santacana, M., Montoro, M., Rosado, S., Guillamat, R., Valles, V., & Fullana, M. A. (2017). Sudden gains in exposure-focused cognitive-behavioral group therapy for panic disorder. Clinical Psychology and Psychotherapy, 24(6), 1285–1291. doi:10.1002/cpp.2093
- Stevens, J. P. (1992). Applied multivariate statistics for the social sciences (2nd ed.). Hillsdale, NJ: Lawrence Erlbaum Associates.
- Tabachnick, B. G., & Fidell, S. L. (2013). Principal components and factor analysis. Using Multivariate Statistics. Boston; MA: Pearson.
- Tang, T. Z., & DeRubeis, R. J. (1999). Sudden gains and critical sessions in cognitive-behavioral therapy for depression. Journal of Consulting and Clinical Psychology, 67(6), 894–904.
- Tang, T. Z., DeRubeis, R. J., Beberman, R., & Pham, T. (2005). Cognitive changes, critical sessions, and sudden gains in cognitive-behavioral therapy for depression. Journal of Consulting and Clinical Psychology, 73(1), 168–172. doi:10.1037/0022-006x.73.1.168
- Tatham, M., Turner, H., Mountford, V. A., Tritt, A., Dyas, R., & Waller, G. (2015). Development, psychometric properties and preliminary clinical validation of a brief, session-by-session measure of eating disorder cognitions and behaviors: The ED-15. International Journal of Eating Disorders, 48(7), 1005–1015. doi:10.1002/eat.22430
- Utzinger, L. M., Goldschmidt, A. B., Crosby, R. D., Peterson, C. B., & Wonderlich, S. A. (2016). Are sudden gains important in the treatment of eating disorders? International Journal of Eating Disorders, 49(1), 32–35. doi:10.1002/eat.22458