Quantitative and Qualitative Methods in Psychotherapy Research

Quantitative and Qualitative Methods in Psychotherapy Research



In this collection, international contributors come together to discuss how qualitative and quantitative methods can be used in psychotherapy research. The book considers the advantages and disadvantages of each approach, and recognises how each method can enhance our understanding of psychotherapy. Divided into two parts, the book begins with an examination of quantitative research and discusses how we can transfer observations into numbers and statistical findings. Chapters on quantitative methods cover the development of new findings and the improvement of existing findings, identifying and analysing change, and using meta-analysis. The second half of the book comprises chapters considering how qualitative and mixed methods can be used in psychotherapy research. Chapters on qualitative and mixed methods identify various ways to strengthen the trustworthiness of qualitative findings via rigorous data collection and analysis techniques. Adapted from a special issue of Psychotherapy Research, this volume will be key reading for researchers, academics, and professionals who want a greater understanding of how a particular area of research methods can be used in psychotherapy.



Publication Date



Taylor & Francis (Routledge)


New York


Psychotherapy-- Research, Evidence-based Psychotherapy


Education | Educational Assessment, Evaluation, and Research | Experimental Analysis of Behavior | Psychology | Quantitative Psychology


Table of Contents

1. Quantitative and qualitative methods for psychotherapy research: introduction


Developing new and improving existing measures

2. Increasing measurement precision in psychotherapy research: item response theory and bifactor models

3. Multitrait--multimethod analysis in psychotherapy research: new methodological approaches

4. Generalizability theory in psychotherapy research: the impact of multiple sources of variance on the dependability of psychotherapy process ratings

5. Using functional magnetic resonance imaging in psychotherapy research: a brief introduction to concepts, methods and task selection

Identifying and analyzing change in psychotherapy

6. Moderators, mediators and mechanisms of change in psychotherapy

7. Multilevel modeling of longitudinal data for psychotherapy researchers: The basics

8. Multilevel modeling of longitudinal data for psychotherapy researchers: The complexities

9. Three-level multilevel growth models for nested change data: a guide for group treatment researchers

10. Multiple levels of analysis in psychotherapy research

11. Modeling psychotherapy process by time-series panel analysis (TSPA)

12. Using clinical significance in psychotherapy outcome research: history, current applications and future recommendations

13. Patient-focused research in psychotherapy: methodological background, decision rules and feedback tools

Aggregating research findings

14. An introduction to meta-analysis for psychotherapy outcome research

15. A primer on meta-analysis of correlation coefficients: the relation between adult attachment style and therapeutic alliance as an illustration


Methodological developments in qualitative research

16. Task analysis: new developments for programmatic research on the process of change

17. An adjudicated hermeneutic single-case efficacy design study of experiential therapy for panic/phobia

18. Creative consensus on interpretations of qualitative data: the Ward method

19. Meta-analysis of qualitative studies: a tool for reviewing qualitative research findings in psychotherapy

Methodological issues in qualitative research

20. From single-case studies to practice-based knowledge: aggregating and synthesizing case studies

21. Qualitative research interviews: an update / Alan W. Burkard.

22. Achieving trustworthiness in qualitative research: a pan-paradigmatic perspective

23. Bracketing in qualitative research: conceptual and practical matters


24. Overview and integration

Quantitative and Qualitative Methods in Psychotherapy Research