Is the relation between early post-session reports and treatment outcome an epiphenomenon of intake distress and early response? A multi-predictor analysis in outpatient psychotherapy

References

• Agras , W.S. , Crow , S.J. , Halmi , K.A. , Mitchell , J.E. , Wilson , G.T. and Kraemer , H.C. 2000 . Outcome predictors for the cognitive behavior treatment of bulimia nervosa: Data from a multisite study . American Journal of Psychiatry , 157 : 1302 – 1308 . doi: 10.1176/appi.ajp.157.8.1302
   PubMed Web of Science ®Google Scholar
• Andrusyna , T. , Luborsky , L. , Pham , T. and Tang , T.Z. 2006 . The mechanisms of sudden gains in supportive-expressive therapy for depression . Psychotherapy Research , 16 : 526 – 535 . doi: 10.1080/10503300600591379
   Web of Science ®Google Scholar
• Baldwin , S.A. , Wampold , B.E. and Imel , Z.E. 2007 . Untangling the alliance-outcome correlation: Exploring the relative importance of therapist and patient variability in the alliance . Journal of Consulting and Clinical Psychology , 75 : 842 – 852 . doi: 10.1037/0022-006X.75.6.842
   PubMed Web of Science ®Google Scholar
• Barber , J.P. , Khalsa , S.-R. and Sharpless , B.A. 2010 . “ The validity of the alliance as a predictor of psychotherapy outcome ” . In The therapeutic alliance: An evidence-based guide to practice , Edited by: Muran , J.C. and Barber , J.P. 29 – 43 . New York : Guilford Press .
   Google Scholar
• Belsley , D.A. , Kuh , E. and Welsch , R.E. 1980 . Regression diagnostics: Identifying influential data and sources of collinearity , New York : John Wiley .
   Google Scholar
• Benedetti , F. 2011 . The patient's brain: The neuroscience behind the doctor-patient relationship , New York : Oxford University Press .
   Google Scholar
• Brotman , M.A. 2004 . Therapeutic alliance and adherence in cognitive therapy for depression . Published doctoral thesis. http://repository.upenn.edu/dissertations/AAI3137984/ .
   Google Scholar
• Busch , A.M. , Kanter , J.W. , Landes , S.J. and Kohlenberg , R.J. 2006 . Sudden gains and outcome: A broader temporal analysis of cognitive therapy for depression . Behavior Therapy , 37 : 61 – 68 . doi: 10.1016/j.beth.2005.04.002
   PubMed Web of Science ®Google Scholar
• Caspar , F. 1995 . Plan analysis. Toward optimizing psychotherapy , Göttingen : Hogrefe .
   Google Scholar
• Caspar , F. 2007 . “ Plan analysis ” . In Handbook of psychotherapeutic case formulations , 2nd ed. , Edited by: Eells , T. 251 – 289 . New York : Guilford Press .
   Google Scholar
• Caspar , F. , & Grosse Holtforth , M. 2009 . Responsiveness – Eine entscheidende Prozessvariable in der Psychotherapy . [Responsiveness – A crucial process variable in psychotherapy] . Zeitschrift für Klinische Psychologie und Psychotherapie , 38 , 61 – 69 . doi: 10.1026/1616-3443.38.1.61
   Web of Science ®Google Scholar
• Comninos , A. and Grenyer , B.F.S. 2007 . The influence of interpersonal factors on the speed of recovery from major depression . Psychotherapy Research , 17 : 239 – 249 . doi: 10.1080/10503300600849140
   Web of Science ®Google Scholar
• Constantino , M.J. , Arnow , B.A. , Blasey , C. and Agras , W.S. 2005 . The association between patient characteristics and the therapeutic alliance in cognitive–behavioral and interpersonal therapy for bulimia nervosa . Journal of Consulting and Clinical Psychology , 73 : 203 – 211 . doi: 10.1037/0022-006X.73.2.203
   PubMed Web of Science ®Google Scholar
• Crits-Christoph , P. , Connolly Gibbons , M.B. , Hamilton , J. , Ring-Krutz , S. and Gallop , R. 2011 . The dependability of alliance assessments: The alliance-outcome correlation is larger than you might think . Journal of Consulting and Clinical Psychology , 79 : 267 – 278 . doi: 10.1037/a0023668
   PubMed Web of Science ®Google Scholar
• Crits-Christoph , P. , Wilson , G.T. and Hollon , S.D. 2005 . Empirically supported psychotherapies: Comment on Westen, Novotny, and Thompson-Brenner (2004) . Psychological Bulletin , 131 : 412 – 417 . doi: 10.1037/0033-2909.131.3.412
   PubMed Web of Science ®Google Scholar
• Davies , L. , Leach , C. , Lucock , M. , Stiles , W.B. , Iveson , S. and Barkham , M. 2006 . Therapists' recall of early sudden gains in routine clinical practice . Psychology and Psychotherapy: Theory, Research & Practice , 79 : 107 – 114 . doi: 10.1348/147608305X41209
   PubMed Web of Science ®Google Scholar
• Del Re , A.C. , Flückiger , C. , Horvath , A.O. , Symonds , D. , & Wampold , B.E. 2012 . Therapist effects in the therapeutic alliance-outcome relationship: A restricted-maximum likelihood meta-analysis . Manuscript submitted for publication .
   Google Scholar
• DeRubeis , R.J. , Brotman , M.A. and Gibbons , C.J. 2005 . A conceptual and methodological analysis of the nonspecific argument . Clinical Psychology Science and Practice , 12 : 174 – 183 . doi: 10.1093/clipsy.bpi022
   Web of Science ®Google Scholar
• Doane , L.S. , Feeny , N.C. and Zoellner , L.A. 2010 . A preliminary investigation of sudden gains in exposure therapy for PTSD . Behaviour Research and Therapy , 48 : 555 – 560 . doi: 10.1016/j.brat.2010.02.002
   PubMed Web of Science ®Google Scholar
• Eells , T. . 2007 . Handbook of psychotherapeutic case formulations . New York : Guilford Press .
   Google Scholar
• Fennell , M.J.V. and Teasdale , J.D. 1987 . Cognitive therapy for depression: Individual differences and the process of change . Cognitive Therapy and Research , 11 : 253 – 271 . doi: 10.1007/BF01183269
   Web of Science ®Google Scholar
• Flückiger , C. , Del Re , A.C. , Wampold , B.E. , Symonds , D. and Horvath , A.O. 2012 . How central is the alliance in psychotherapy – A multilevel longitudinal meta-analysis . Journal of Counseling Psychology , 59 : 10 – 17 . doi: 10.1037/a0025749
   PubMed Web of Science ®Google Scholar
• Flückiger , C. , Regli , D. , Grawe , K. and Lutz , W. 2007 . Differences and similarities between pre-post and retrospective measuring . Psychotherapy Research , 17 : 359 – 364 . doi: 10.1080/10503300600830728
   Web of Science ®Google Scholar
• Flückiger , C. , Regli , D. , Zwahlen , D. , Hostettler , S. , & Caspar , F. 2010 . Der Berner Patienten- und Therapeutenstundenbogen 2000 [The Bern Post-Session Reports for Patients and Therapists 2000] . Zeitschrift für Klinische Psychologie und Psychotherapie , 39 , 71 – 79 . doi: 10.1026/1616-3443/a000015
   Web of Science ®Google Scholar
• Flückiger , C. , Wüsten , G. , Zinbarg , R.E. and Wampold , B.E. 2010 . Resource activation – Working with the client's strengths , Washington , MA : Hogrefe .
   Google Scholar
• Frank , J.D. and Frank , J.B. 1991 . Persuasion and healing: A comparative study of psychotherapy , 3rd ed. , Baltimore , MD : Johns Hopkins University Press .
   Google Scholar
• Franke , G.H. 2000 . Brief Symptom Inventory von L.R. Derogatis [Brief symptom inventory from L.R. Derogatis, German version] . Weinheim : Beltz Test GmbH .
   Google Scholar
• Goldfried , M.R. 1980/2009 . Toward the delineation of therapeutic change principles . Applied and Preventive Psychology , 13 , 3 – 4 . doi: 10.1016/j.appsy.2009.10.015
   Web of Science ®Google Scholar
• Grawe , K. 1997 . Research-informed psychotherapy . Psychotherapy Research , 7 : 1 – 19 .
   Web of Science ®Google Scholar
• Grawe , K. 2004 . Psychological psychotherapy . Göttingen , , Germany : Hogrefe . (Original work published in German in 1998) .
   Google Scholar
• Grawe , K. 2006 . Neuropsychotherapy , Cambridge , MA : Hogrefe .
   Google Scholar
• Grawe , K. , & Baltensperger , C. 1998 . Figurationsanalyse-Ein Konzept und Computerprogramm für die Prozess -und Ergebnisevaluation in der Therapiepraxis . [Figuration analysis – concept and computer program for quality management.] In A.R. Laireiter & H. Vogel , Qualitätssicherung in der Psychotherapie und psychosozialen Versorgung . Tübingen : dgvt Verlag .
   Google Scholar
• Grawe , K. , & Braun , U. 1994 . Qualitätskontrolle in der Psychotherapie [Quality control in psychotherapy] . Zeitschrift für Klinische Psychologie und Psychotherapie , 23 , 242 – 267 .
   Google Scholar
• Grawe , K. , Ohlendorf , H. , Retzmann , A. , & Schröder , M. 1978 . Der Gruppenbeurteilungsbogen [The group post session report]. In R. Ullrich & R. Ullrich de Muynck , Soziale Kompetenz (pp. 36 – 71 ). München : Pfeiffer .
   Google Scholar
• Grilo , C.M. , Masheb , R.M. and Wilson , G.T. 2006 . Rapid response to treatment for binge eating disorder . Journal of Consulting and Clinical Psychology , 74 : 602 – 613 . doi: 10.1037/0022-006X.74.3.602
   PubMed Web of Science ®Google Scholar
• Grosse Holtforth , M. and Castonguay , L.G. 2005 . Relationship and techniques in CBT–A motivational approach . Psychotherapy: Theory, Research, Practice, Training , 42 : 443 – 455 . doi: 10.1037/0033-3204.42.4.443
   Web of Science ®Google Scholar
• Grosse Holtforth , M. , & Flückiger , C. (in press; a) . The stream of corrective experiences in action: Big Bang and Constant Dripping . In L.G. Castonguay & C.E. Hill , Transformation in psychotherapy: Corrective experiences across cognitive-behavioral, humanistic, and psychodynamic approaches . Washington , DC : APA Books .
   Google Scholar
• Grosse Holtforth , M. , & Flückiger , C. (in press; b) . Corrective experiences as mediators of therapeutic change . In L.G. Castonguay & C.E. Hill , Transformation in psychotherapy: Corrective experiences across cognitive-behavioral, humanistic, and psychodynamic approaches . Washington , DC : APA Books .
   Google Scholar
• Grosse Holtforth , M. , Lutz , W. and Grawe , K. 2006 . Structure and change of the IIP-D pre- and postpsychotherapy. A replication using a Swiss clinical sample . European Journal of Psychological Assessment , 22 : 98 – 103 . doi: 10.1027/1015-5759.22.2.98
   Web of Science ®Google Scholar
• Haas , E. , Hill , R.D. , Lambert , M.J. and Morrell , B. 2002 . Do early responders to psychotherapy maintain treatment gains? . Journal of Clinical Psychology , 58 : 1157 – 1172 . doi: 10.1002/jclp.10044
   PubMed Web of Science ®Google Scholar
• Hardy , G.E. , Cahill , J. , Stiles , W.B. , Ispan , C. , Macaskill , N. and Barkham , M. 2005 . Sudden gains in cognitive therapy for depression: A replication and extension . Journal of Consulting and Clinical Psychology , 73 : 59 – 67 . doi: 10.1037/0022-006X.73.1.59
   PubMed Web of Science ®Google Scholar
• Hatcher , R.L. , Barends , A. , Hansell , J. and Gutfreund , M.J. 1995 . Patient's and therapist's shared and unique views of the therapeutic alliance: An investigation using confirmatory factor analysis in a nested design . Psychoanalysis Quarterly , 63 : 636 – 643 .
   Google Scholar
• Hilbert , A. , Saelens , B.E. , Stein , R.I. , Mockus , D.S. , Welch , R.R. , Matt , G.E. and Wilfley , D.E. 2007 . Pretreatment and process predictors of outcome in interpersonal and cognitive behavioral psychotherapy for binge eating disorder . Journal of Consulting and Clinical Psychology , 75 : 645 – 51 . doi: 10.1037/0022-006X.75.4.645
   PubMed Web of Science ®Google Scholar
• Hofmann , S.G. , Schulz , S.M. , Meuret , A.E. , Moscovitch , D.A. and Suvak , M. 2006 . Sudden gains during therapy of social phobia . Journal of Consulting and Clinical Psychology , 74 : 687 – 697 . doi: 10.1037/0022-006X.74.4.687
   PubMed Web of Science ®Google Scholar
• Horowitz , L.M. , Strauß , B. , & Kordy , H. 2000 . Das Inventar zur Erfassung interpersonaler Probleme (IIP-64-D) [Inventory of interpersonal problems, German version]. [Manual] . Weinheim : Beltz .
   Google Scholar
• Horvath , A. , Del Re , A.C. , Flückiger , C. and Symonds , D. 2011 . “ The alliance in individual psychotherapy ” . In Relationships that work , Edited by: Norcross , J.C. 25 – 69 . New York : Oxford University Press .
   Google Scholar
• Hostettler , S. 2009 . Patientenstundenbogen 2000 – Untersuchung der Faktorenstruktur und Überprüfung der testtheoretischen Kennwerte [Patients' version of the Bern post session reports 2000 – factor structure and psychometric characteristics]. Unpublished master thesis . Bern : Universität Bern .
   Google Scholar
• Howard , K.I. , Lueger , R.J. , Maling , M.S. and Martinovich , Z. 1993 . A phase model of psychotherapy outcome: Causal mediation of change . Journal of Consulting and Clinical Psychology , 61 : 678 – 685 . doi: 10.1037/0022-006X.61.4.678
   PubMed Web of Science ®Google Scholar
• Howard , K.I. , Moras , K. , Brill , P. , Martinovich , Z. and Lutz , W. 1996 . The evaluation of psychotherapy . American Psychologist , 51 : 1059 – 1064 . doi: 10.1037/0003-066X.51.10.1059
   PubMed Web of Science ®Google Scholar
• Hoyt , W.T. and Melby , J.N. 1999 . Dependability of measurement in counseling psychology: An introduction to generalizability theory . Counseling Psychologist , 27 : 325 – 352 . doi: 10.1177/0011000099273003
   Web of Science ®Google Scholar
• Illardi , S.S. and Craighead , W.E. 1994 . The role of nonspecific factors in cognitive-behavior therapy for depression . Journal of Clinical Psychology , 1 : 138 – 156 . doi: 10.1111/j.1468-2850.1994.tb00016.x
   Web of Science ®Google Scholar
• Itten , S. , & Grawe , K. 2003 . VLB-Veränderungsfragebogen für Lebensbereiche [Change Questionnaire in Life Domains]. In E. Brähler , J. Schumacher and B. Strauß , Diagnostische Verfahren in der Psychotherapie (pp. 382 – 384 ). Göttingen : Hogrefe .
   Google Scholar
• Kelly , M.A.R. , Roberts , J.E. and Ciesla , J.A. 2005 . Sudden gains in cognitive behavioral treatment for depression: When do they occur and do they matter? . Behaviour Research and Therapy , 43 : 703 – 714 . doi: 10.1016/j.brat.2004.06.002
   PubMed Web of Science ®Google Scholar
• Kelly , K.A. , Rizvi , S.L. , Monson , C.M. and Resick , P.A. 2009 . The impact of sudden gains in cognitive behavioral therapy for poststraumatic stress disorder . Journal of Traumatic Stress , 22 : 287 – 293 . doi: 10.1002/jts.20427
   PubMed Web of Science ®Google Scholar
• Kiresuk , T. and Lund , S. 1979 . “ Goal attainment scaling: Research, evaluation and utilization ” . In Program evaluation in health fields , Edited by: Schulberg , H.C. and Parker , F. Vol. 2 , 214 – 237 . New York : Human Science Press .
   Google Scholar
• Kirsch , I. 1990 . Changing expectations: A key to effective psychotherapy , Pacific Grove , CA : Brooks/Cole .
   Google Scholar
• Lambert , M.J. 2001 . Psychotherapy outcome and quality improvement: Introduction to the special section on patient-focused research . Journal of Consulting and Clinical Psychology , 69 : 147 – 149 . doi: 10.1037/0022-006X.69.2.147
   PubMed Web of Science ®Google Scholar
• Loeb , K.L. , Wilson , G.T. , Labouvie , E. , Pratt , E.M. , Hayaki , J. , Walsh , B.T. Agras , W.S. 2005 . Therapeutic alliance and treatment adherence in two interventions for bulimia nervosa: A study of process and outcome . Journal of Consulting and Clinical Psychology , 73 : 1097 – 1107 . doi: 10.1037/0022-006X.73.6.1097
   PubMed Web of Science ®Google Scholar
• Lutz , W. , Leach , C. , Barkham , M. , Lucock , M. , Stiles , W.B. Evans , C. 2005 . Predicting rate and shape of change for individual clients receiving psychological therapy: Using growth curve modeling and nearest neighbor technologies . Journal of Consulting and Clinical Psychology , 73 : 904 – 913 . doi: 10.1037/0022-006X.73.5.904
   PubMed Web of Science ®Google Scholar
• Lutz , W. , & Tschitsaz , A. 2007 . Plötzliche Gewinne und Verluste im Behandlungsverlauf von Angststörungen, depressiven und komorbiden Störungen [Sudden gains and losses in the treatment of patients with anxiety, depressive and comorbid disorders] . Zeitschrift fü[ruml] Klinische Psychologie und Psychotherapie , 36 , 298 – 308 . doi: 10.1026/1616-3443.36.4.298
   Web of Science ®Google Scholar
• Norcross , J.C. 2011 . Relationships that work , New York : Oxford University Press .
   Google Scholar
• Norcross , J.C. , Karpiak , C.P. and Samtoro , S.O. 2005 . Clinical Psychologist across the years: The division of clinical psychology from 1960 to 2003 . Journal of Clinical Psychology , 61 : 1467 – 1483 . doi: 10.1002/jclp.20135
   PubMed Web of Science ®Google Scholar
• Norton , P.J. , Klenk , S.C. and Barrera , T.L. 2010 . Sudden gains during cognitive-behavioral group therapy . Journal of Anxiety Disorders , 24 : 887 – 892 . doi: 10.1016/j.janxdis.2010.06.012
   PubMed Web of Science ®Google Scholar
• Raudenbush , S.W. , Bryk , A.S. , Cheong , Y.F. , & Congdon , R.T. 2004 . HLM 6 . Software . Lincolnwood : SSI .
   Google Scholar
• Raudenbush , S.W. and Bryk , A.S. 2002 . Hierarchical linear models , 2nd ed , Thousand Oaks : Sage .
   Google Scholar
• Renaud , J. , Brent , D.A. , Baugher , M. , Birmaher , B. , Kolko , D.J. and Bridge , J. 1998 . Rapid response to psychosocial treatment for adolescent depression: A two-year follow-up . Journal of the American Academy of Child and Adolescent Psychiatry , 37 ( 11 ) : 1184 – 1190 . doi: 10.1097/00004583-199811000-00019
   PubMed Web of Science ®Google Scholar
• Sharf , J. , & Primavera , L.H. 2009 . Meta-analysis of psychotherapy dropouts . Unpublished manuscript , Adelphi University .
   Google Scholar
• Schulte , D. 1996 . Therapieplanung [Panning of Therapy] , Göttingen : Hogrefe .
   Google Scholar
• Stiles , W.B. 2009 . Responsiveness as an obstacle in psychotherapy outcome research: It's worse than you think . Clinical Psychology, Science and Practice , 16 : 86 – 91 . doi: 10.1111/j.1468-2850.2009.01148.x
   Web of Science ®Google Scholar
• Stiles , W.B. , Leach , C. , Barkham , M. , Lucock , M. , Iveson , S. , Shapiro , D.A. , Iveson , M. and Hardy , G.E. 2003 . Early sudden gains in psychotherapy under routine clinic conditions: Practice-based evidence . Journal of Consulting and Clinical Psychology , 71 : 14 – 21 . doi: 10.1037/0022-006X.71.1.14
   PubMed Web of Science ®Google Scholar
• Strauss , J.L. , Hayes , A.M. , Johnson , S.L. , Newman , C.F. Brown , G.K. 2006 . Early alliance, alliance ruptures, and symptom change in a nonrandomized trial of cognitive therapy for avoidant and obsessive-compulsive personality disorders . Journal of Consulting and Clinical Psychology , 74 ( 2 ) : 337 – 345 . doi: 10.1037/0022-006X.74.2.337
   PubMed Web of Science ®Google Scholar
• Strunk , D.R. , Brotman , M.A. and DeRubeis , R.J. 2010 . The process of change in congitive therapy for depression: Predictors of early inter-session symptom gains . Behaviour Research and Therapy , 48 : 599 – 606 . doi: 10.1016/j.brat.2010.03.011
   PubMed Web of Science ®Google Scholar
• Stulz , N. and Lutz , W. 2007 . Multidimensional patterns of change in outpatient psychotherapy: The phase model revisited . Journal of Clinical Psychology , 63 : 817 – 833 . doi: 10.1002/jclp.20397
   PubMed Web of Science ®Google Scholar
• Tang , T.Z. and DeRubeis , R.J. 1999 . Sudden gains and critical sessions in cognitive-behavioral therapy for depression . Journal of Consulting and Clinical Psychology , 6 : 894 – 904 . doi: 10.1037/0022-006X.67.6.894
   Web of Science ®Google Scholar
• Tang , T.Z. , DeRubeis , R.J. , Hollon , S.D. , Amsterdam , J.A. and Shelton , R.C. 2007 . Sudden gains in cognitive therapy of depression and depression relapse/recurrence . Journal of Consulting and Clinical Psychology , 75 : 404 – 408 . doi: 10.1037/0022-006X.75.3.404
   PubMed Web of Science ®Google Scholar
• Tang , T.Z. , Luborsky , L. and Andrusyna , T. 2002 . Sudden gains in recovering from depression: Are they also found in psychotherapies other than cognitive-behavioral therapy? . Journal of Consulting and Clinical Psychology , 70 : 444 – 447 . doi: 10.1037/0022-006X.70.2.444
   PubMed Web of Science ®Google Scholar
• Tschitsaz-Stucki , A. , & Lutz , W. 2009 . Identifikation und Aufklärung von Veränderungssprüngen im individuellen Psychotherapieverlauf . [Identification and clarification of sudden gains and sudden losses in individual psychotherapy courses] . Zeitschrift für Klinische Psychologie und Psychotherapie , 38 , 13 – 23 . doi: 10.1026/1616-3443.38.1.13
   Web of Science ®Google Scholar
• Wampold , B.E. 2001 . The great psychotherapy debate: Models, methods, and findings , Mahwah , NJ : Erlbaum .
   Google Scholar
• Wampold , B.E. and Budge , S.L. 2012 . The 2011 Leona Tyler Award Address: The relationship – and its relationship to the common and specific factors of psychotherapy . The Counseling Psychologist , 40 : 601 – 623 . doi: 10.1177/0011000011432709
   Google Scholar
• Wampold , B.E. and Serlin , R.C. 2000 . The consequence of ignoring a nested factor on measures of effect size in analysis of variance . Psychological Methods , 5 : 425 – 433 . doi: 10.1037/1082-989X.5.4.425
   PubMed Web of Science ®Google Scholar
• Watzlawick , P. , Weakland , R. and Fisch , R. 1974 . Change , New York : Norton .
   Google Scholar
• Webb , C.A. , DeRubeis , R.J. and Barber , J.P. 2010 . Therapists' adherence/competence and treatment outcome: A metaanalytic review . Journal of Consulting and Clinical Psychology , 78 : 200 – 211 . doi: 10.1037/a0018912
   PubMed Web of Science ®Google Scholar
• Webb , C.A. , DeRubeis , R.J. , Amsterdam , J.D. , Shelton , R.C. , Hollon , S.D. and Dimidjian , S. 2011 . Two aspects of the therapeutic alliance: Differential relations with depressive symptom change . Journal of Consulting and Clinical Psychology , 79 ( 3 ) : 279 – 283 . doi: 10.1037/a0023252
   PubMed Web of Science ®Google Scholar
• Willutzki , U. 1999 . Neue Version des Veranderungsfragebogens des Erlebens und Verhaltens (VEV-VW) [New version of the questionnaire to assess changes in experiencing and behavior (QCEB-VW)]. Unpublished manuscript , Institut für Psychologie der Ruhr-Universität Bochum .
   Google Scholar
• Wilson , G.T. , Fairburn , C.C. , Agras , W.S. , Walsh , B.T. and Kraemer , H. 2002 . Cognitive-behavioral therapy for bulimia nervosa: Time course and mechanisms of change . Journal of Consulting and Clinical Psychology , 70 : 267 – 274 . doi: 10.1037/0022-006X.70.2.267
   PubMed Web of Science ®Google Scholar
• Wittchen , H. , Zaudig , M. , & Fydrich , T. 1997 . Strukturiertes Klinisches Interview für DSM-IV [Structured Clinical Interview for DSM-IV] . Bern : Hogrefe Testzentrale .
   Google Scholar
• Zwahlen , D. 2009 . Was Therapeuten nach einer Therapiesitzung zu berichten haben – Der Berner Therapeutenstundenbogen 2000 [Therapists' session evaluation – Therapists' version of the Bern post session reports 2000]. Unpublished master thesis . Bern : Universität Bern .
   Google Scholar