Transtheoretical Psychological Therapy – New Perspectives for Clinical Training and Practice Editorial Transtheoretical Psychological Therapy – New Perspectives for Clinical Training and Practice Wolfgang Lutz 1 , Winfried Rief 2 [1] Clinical Psychology and Psychotherapy, University of Trier, Trier, Germany. [2] Clinical Psychology and Psychotherapy, Philipps University Marburg, Marburg, Germany. Clinical Psychology in Europe, 2024, Vol. 6(Special Issue), Article e13891, https://doi.org/10.32872/cpe.13891 Published (VoR): 2024-04-26 Corresponding Author: Wolfgang Lutz, Clinical Psychology and Psychotherapy, Department of Psychology, University of Trier, D-54286 Trier, Germany. Tel.: +49 (0)6 51 / 2 01 28 83. E-mail: lutzw@uni-trier.de Related: This article is part of the CPE Special Issue “Transtheoretical Psychological Therapy – New Perspectives for Clinical Training and Practice”, Editors: Wolfgang Lutz & Winfried Rief, Clinical Psychology in Europe, 6(Special Issue), https://doi.org/10.32872/10.32872/cpe.v6.si In this special issue of Clinical Psychology in Europe on "Transtheoretical Psychological Therapy – New Perspectives for Clinical Training and Practice", we focus on new evi­ dence-based transtheoretical concepts of clinical training and practice. A transtheoretical perspective offers a new framework for integrating evidence-based psychological treat­ ment techniques that can have theoretical roots in different theories. Thus, it represents an umbrella that encourages the consideration of all research results and evidence-based treatment proposals, and a fruitful stimulation of insights across traditional orientations. Transtheoretical psychotherapy aims to use findings from mechanisms, outcome, proc­ ess, and feedback research as conceptual frameworks for clinical practice and training. The history of psychotherapy (now often referred to as psychological therapy to include the various newer theoretical concepts) is characterized by a growing number of clinical theories, approaches, and methods with their psychopathological concepts, psy­ chological models of change, and, as a result, the growth of a heterogeneous landscape of professional therapy associations. The major schools of therapy that have emerged from this development have contributed to the establishment of the field and advances in patient care around the world. However, a scientifically sound and clearly defined causal network between mechanisms of change and treatment outcomes has been lacking (Lutz et al., 2022). In addition, service systems around the world are very heterogeneous in the definition and delivery of psychological therapy, and not all treatment concepts applied in clinical practice are scientifically evaluated (Rief et al., 2022). This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License, CC BY 4.0, which permits unrestricted use, distribution, and reproduction, provided the original work is properly cited. https://crossmark.crossref.org/dialog/?doi=10.32872/cpe.13891&domain=pdf&date_stamp=2024-04-26 https://orcid.org/0000-0002-5141-3847 https://orcid.org/0000-0002-7019-2250 https://www.psychopen.eu/ https://cpe.psychopen.eu/ https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0/ Simultaneously, an emphasis on treatment approaches and therapeutic schools re­ sulted in inflexibilities and conflicts among colleagues. This frequently resulted in a constricted view of scientific and clinical perspectives, impeding the dynamic advance­ ment of the field in terms of psychotherapy research and finding common ground (e.g. Goldfried, 1980; Hofmann et al., 2022; Lutz et al., 2023). Furthermore, while for example in Germany the official state-wide guidelines prohibit combining procedures in outpatient practice, such combinations are at the same time prevalent in outpatient and inpatient settings both nationally and internationally (Twomey et al., 2023). In this special issue, transtheoretical concepts and practical implications that go be­ yond the boundaries of traditional psychotherapeutic procedures and aim for a broader, scientifically based understanding of psychotherapy are discussed. Transtheoretical is understood here as a broader concept, as originally introduced by Prochaska and Di Clemente (1982). This includes an orientation towards evidence-based treatment procedures and strat­ egies as well as multimethod and multidimensional diagnostic concepts and data-in­ formed decision tools, which can form the basis for transtheoretical and evidence-based clinical training and practice in the future. From our point of view, it is now time to de­ velop broader transtheoretical and scientifically supported concepts for clinical training and practice of psychological therapy, and this special issue wants to contribute to this process. The papers cover a wide range of issues in the current debate on transtheoretical and integrative concepts as well as specific interventions, clinical methods, or strategies. Several papers present important new developments in transtheoretical metamodels and provide new research- and process-based conceptual frameworks, such as Babl et al. (2024); Boswell et al. (2024); Caspar and Berger (2024); Flückiger et al. (2024); Hofmann and Hayes (2024); Lutz et al. (2024); McNally (2024); Rafaeli and Rafaeli (2024); Rief et al. (2024) and Taubner and Sharp (2024). In addition, several papers discuss transtheoretical clinical case conceptualization and interventions, competencies, and core processes, such as case conceptualization (Gilboa-Schechtman, 2024), homework (Ryum & Kazantzis, 2024), deliberate practice, marker response sequences, and responsiveness (Babl et al., 2024; Boswell et al., 2024), mentalization (Taubner & Sharp, 2024), alliance ruptures (Zilcha-Mano & Muran, 2024), needs and internal self-states (Rafaeli & Rafaeli, 2024), strength (Flückiger et al., 2024), outcome monitoring (Lutz et al., 2024), central processes (Hofmann & Hayes, 2024); disorder-specific knowledge and dynamic networks (Hofmann & Hayes, 2024; McNally, 2024; Rief et al., 2024). While the authors were mostly trained in traditional approaches such as psychodynamic therapy or CBT, they share the intention to search for the common ground of psychotherapy, the basic mechanisms of change, and to foster the development of a common language of psychological treatments. Our vision is a vibrant scientific and practical discipline, optimizing the surplus of integration and progress of treatments, and overcoming artificial boundaries. Transtheoretical Psychological Therapy – Introduction to the Special Issue 2 Clinical Psychology in Europe 2024, Vol. 6(Special Issue), Article e13891 https://doi.org/10.32872/cpe.13891 https://www.psychopen.eu/ Funding: No funding that could have influenced the content of this paper. Acknowledgments: The authors have no additional (i.e., non-financial) support to report. Competing Interests: Wolfgang Lutz is Guest Editor of this Special Issue. Winfried Rief is Editor-in-Chief of Clinical Psychology in Europe. Twitter Accounts: @LutzPsychRes, @RiefWinfried References Babl, A., Eubanks, C. F., & Goldfried, M. R. (2024). A 21st century principle-based training approach to psychotherapy: A contribution to the momentum of transtheoretical work. Clinical Psychology in Europe, 6(Special Issue), Article e11925. https://doi.org/10.32872/cpe.11925 Boswell, J. F., Constantino, M. J., Gaines, A. N., & Smith, A. E. (2024). Responding to key process markers as a focus of psychotherapy training and practice. Clinical Psychology in Europe, 6(Special Issue), Article e11967. https://doi.org/10.32872/cpe.11967 Caspar, F., & Berger, T. (2024). Four versions of transtheoretical stances, and the Bernese view. Clinical Psychology in Europe, 6(Special Issue), Article e12453. https://doi.org/10.32872/cpe.12453 Flückiger, C., Willutzki, U., grosse Holtforth, M., & Wampold, B. E. (2024). Psychotherapy works – An inclusive and affirming view to a modern mental health treatment. Clinical Psychology in Europe, 6(Special Issue), Article e11971. https://doi.org/10.32872/cpe.11971 Gilboa-Schechtman, E. (2024). Case conceptualization in clinical practice and training. Clinical Psychology in Europe, 6(Special Issue), Article e12103. https://doi.org/10.32872/cpe.12103 Goldfried, M. R. (1980). Toward the delineation of therapeutic change principles. The American Psychologist, 35(11), 991–999. https://doi.org/10.1037/0003-066X.35.11.991 Hofmann, S. G., Barber, J. P., Salkovskis, P., Wampold, B. E., Rief, W., Ewen, A.-C. I., & Schäfer, L. N. (2022). What is the common ground for modern psychotherapy? A discussion paper based on EACLIPT’s 1st webinar. Clinical Psychology in Europe, 4(1), Article e8403. https://doi.org/10.32872/cpe.8403 Hofmann, S. G., & Hayes, S. C. (2024). A process-based approach to transtheoretical clinical research and training. Clinical Psychology in Europe, 6(Special Issue), Article e11987. https://doi.org/10.32872/cpe.11987 Lutz, W., Deisenhofer, A.-K., Weinmann-Lutz, B., & Barkham, M. (2023). Data-informed clinical training and practice. In L. G. Castonguay & C. E. Hill (Eds.), Becoming better psychotherapists: Advancing training and supervision (pp. 191–213). American Psychological Association. https://doi.org/10.1037/0000364-010 Lutz & Rief 3 Clinical Psychology in Europe 2024, Vol. 6(Special Issue), Article e13891 https://doi.org/10.32872/cpe.13891 https://twitter.com/lutzpsychres https://twitter.com/RiefWinfried https://doi.org/10.32872/cpe.11925 https://doi.org/10.32872/cpe.11967 https://doi.org/10.32872/cpe.12453 https://doi.org/10.32872/cpe.11971 https://doi.org/10.32872/cpe.12103 https://doi.org/10.1037/0003-066X.35.11.991 https://doi.org/10.32872/cpe.8403 https://doi.org/10.32872/cpe.11987 https://doi.org/10.1037/0000364-010 https://www.psychopen.eu/ Lutz, W., Schwartz, B., Deisenhofer, A.-K., Schaffrath, J., Eberhardt, S. T., Bommer, J., Vehlen, A., Moggia, D., Poster, K., Weinmann-Lutz, B., Rubel, J. A., & Hehlmann, M. I. (2024). From theory to practice: A Transtheoretical Treatment and Training Model (4TM). Clinical Psychology in Europe, 6(Special Issue), Article e12421. https://doi.org/10.32872/cpe.12421 Lutz, W., Schwartz, B., & Delgadillo, J. (2022). Measurement-based and data-informed psychological therapy. Annual Review of Clinical Psychology, 18, 71–98. https://doi.org/10.1146/annurev-clinpsy-071720-014821 McNally, R. J. (2024). Psychological clinical science: Meeting the challenge of public mental health. Clinical Psychology in Europe, 6(Special Issue), Article e12067. https://doi.org/10.32872/cpe.12067 Prochaska, J. O., & DiClemente, C. C. (1982). Transtheoretical therapy: Toward a more integrative model of change. Psychotherapy, 19(3), 276–288. https://doi.org/10.1037/h0088437 Rafaeli, E., & Rafaeli, A. K. (2024). Needs, modes, and stances: Three cardinal questions for psychotherapy practice and training. Clinical Psychology in Europe, 6(Special Issue), Article e12753. https://doi.org/10.32872/cpe.12753 Rief, W., Kopp, M., Awarzamani, R., & Weise, C. (2022). Selected trends in psychotherapy research: An index analysis of RCTs. Clinical Psychology in Europe, 4(2), Article e7921. https://doi.org/10.32872/cpe.7921 Rief, W., Wilhelm, M., Bleichhardt, G., Strauss, B., Frostholm, L., & von Blanckenburg, P. (2024). Competence-based trainings for psychological treatments – A transtheoretical perspective. Clinical Psychology in Europe, 6(Special Issue), Article e13277. https://doi.org/10.32872/cpe.13277 Ryum, T., & Kazantzis, N. (2024). Between-session homework in clinical training and practice: A transtheoretical perspective. Clinical Psychology in Europe, 6(Special Issue), Article e12607. https://doi.org/10.32872/cpe.12607 Taubner, S., & Sharp, C. (2024). Mental flexibility and epistemic trust through implicit social learning – A meta-model of change processes in psychotherapy with personality disorders. Clinical Psychology in Europe, 6(Special Issue), Article e12433. https://doi.org/10.32872/cpe.12433 Twomey, C., O’Reilly, G., & Goldfried, M. R. (2023). Consensus on the perceived presence of transtheoretical principles of change in routine psychotherapy practice: A survey of clinicians and researchers. Psychotherapy, 60(2), 219–224. https://doi.org/10.1037/pst0000489 Zilcha-Mano, S., & Muran, J. C. (2024). Thinking transtheoretically about alliance and rupture: Implications for practice and training. Clinical Psychology in Europe, 6(Special Issue), Article e12439. https://doi.org/10.32872/cpe.12439 Transtheoretical Psychological Therapy – Introduction to the Special Issue 4 Clinical Psychology in Europe 2024, Vol. 6(Special Issue), Article e13891 https://doi.org/10.32872/cpe.13891 https://doi.org/10.32872/cpe.12421 https://doi.org/10.1146/annurev-clinpsy-071720-014821 https://doi.org/10.32872/cpe.12067 https://doi.org/10.1037/h0088437 https://doi.org/10.32872/cpe.12753 https://doi.org/10.32872/cpe.7921 https://doi.org/10.32872/cpe.13277 https://doi.org/10.32872/cpe.12607 https://doi.org/10.32872/cpe.12433 https://doi.org/10.1037/pst0000489 https://doi.org/10.32872/cpe.12439 https://www.psychopen.eu/ Clinical Psychology in Europe (CPE) is the official journal of the European Association of Clinical Psychology and Psychological Treatment (EACLIPT). PsychOpen GOLD is a publishing service by Leibniz Institute for Psychology (ZPID), Germany. 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