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Intraclass correlat...
Intraclass correlation associated with therapists : estimates and applications in planning psychotherapy research
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- Baldwin, Scott A. (author)
- Department of Psychology, Brigham Young University, Provo, Utah, USA
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- Murray, David M. (author)
- Division of Epidemiology, Ohio State University, Columbus, Ohio, USA
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- Shadish, William R. (author)
- School of Social Sciences, Humanities and Arts, University of California, Merced, Merced, California, USA
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- Pals, Sherri L. (author)
- Department of Psychology, University of Memphis, Memphis, Tennessee, USA
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- Holland, Jason M. (author)
- VA Palo Alto Health Care System, Stanford University School of Medicine, Stanford, California, USA
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- Abramowitz, Jonathan S. (author)
- Department of Psychology, University of North Carolina, Chapel Hill, Chapel Hill, North Carolina, USA
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- Andersson, Gerhard (author)
- Linköpings universitet,Psykologi,Filosofiska fakulteten
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- Atkins, David C. (author)
- Center for the Study of Health and Risk Behaviors, Department of Psychiatry and Behavioral Science, University of Washington, Seattle, Washington, USA
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- Carlbring, Per, 1972- (author)
- Umeå universitet,Institutionen för psykologi,Department of Psychology, Umeå University, Umeå, Sweden
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- Carroll, Kathleen M. (author)
- Division of Substance Abuse, Yale School of Medicine, New Haven, Connecticut, USA
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- Christensen, Andrew (author)
- Department of Psychology, University of California, Los Angeles, Los Angeles, California, USA
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- Eddington, M. (author)
- Department of Psychology, University of North Carolina at Greensboro, Greensboro, North Carolina, USA
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- Ehlers, Anke (author)
- Department of Psychology, Institute of Psychiatry, King's College London, London, United Kingdom
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- Feaster, Daniel J. (author)
- Department of Epidemiology and Public Health, Miller School of Medicine, University of Miami, Miami, Florida, USA
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- Keijesers, Ger P. J. (author)
- Behaviour Science Institute, Radboud University Nijmegen, Nijmegen, The Netherlands
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- Koch, Ellen (author)
- Department of Psychology, Eastern Michigan University, Ypsilanti, Michigan, USA
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- Kuyken, Willem (author)
- Mood Disorders Centre, School of Psychology, University of Exeter, Exeter, United Kingdom
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- Lange, Alfred (author)
- Department of Clinical Psychology, University of Amsterdam, Amsterdam, The Netherlands
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- Lincoln, Tania (author)
- Department of Psychology, University of Marburg, Marburg, Germany
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- Stephens, Robert S. (author)
- Department of Psychology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA
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- Taylor, Steven (author)
- Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada
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- Trepka, Chris (author)
- Bradford District NHS Care Trust, Bradford, United Kingdom
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- Watson, Jeanne (author)
- Department of Adult Education, Community Development and Counselling Psychology, University of Toronto, Toronto, Ontario, Canada
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(creator_code:org_t)
- Routledge, Taylor and Francis Group, 2011
- 2011
- English.
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In: Cognitive Behaviour Therapy. - : Routledge, Taylor and Francis Group. - 1650-6073 .- 1651-2316. ; 40:1, s. 15-33
- Related links:
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https://europepmc.or...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
Close
- It is essential that outcome research permit clear conclusions to be drawn about the efficacy of interventions. The common practice of nesting therapists within conditions can pose important methodological challenges that affect interpretation, particularly if the study is not powered to account for the nested design. An obstacle to the optimal design of these studies is the lack of data about the intraclass correlation coefficient (ICC), which measures the statistical dependencies introduced by nesting. To begin the development of a public database of ICC estimates, the authors investigated ICCs for a variety outcomes reported in 20 psychotherapy outcome studies. The magnitude of the 495 ICC estimates varied widely across measures and studies. The authors provide recommendations regarding how to select and aggregate ICC estimates for power calculations and show how researchers can use ICC estimates to choose the number of patients and therapists that will optimize power. Attention to these recommendations will strengthen the validity of inferences drawn from psychotherapy studies that nest therapists within conditions.
Subject headings
- SAMHÄLLSVETENSKAP -- Psykologi (hsv//swe)
- SOCIAL SCIENCES -- Psychology (hsv//eng)
Keyword
- statistical dependence; therapist effects; intraclass correlation; power; psychotherapy research
- Psychology
- Psykologi
- Psychology
- psykologi
- History and philosophy subjects
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Baldwin, Scott A ...
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Murray, David M.
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Shadish, William ...
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Pals, Sherri L.
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Holland, Jason M ...
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Abramowitz, Jona ...
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show more...
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Andersson, Gerha ...
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Atkins, David C.
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Carlbring, Per, ...
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Carroll, Kathlee ...
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Christensen, And ...
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Eddington, M.
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Ehlers, Anke
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Feaster, Daniel ...
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Keijesers, Ger P ...
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Koch, Ellen
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Kuyken, Willem
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Lange, Alfred
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Lincoln, Tania
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Stephens, Robert ...
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Taylor, Steven
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Trepka, Chris
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Watson, Jeanne
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show less...
- About the subject
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- SOCIAL SCIENCES
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SOCIAL SCIENCES
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and Psychology
- Articles in the publication
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Cognitive Behavi ...
- By the university
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Umeå University
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Linköping University