Michael Barkham

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To complement the evidence-based practice paradigm, the authors argued for a core outcome measure to provide practice-based evidence for the psychological therapies. Utility requires instruments that are acceptable scientifically, as well as to service users, and a coordinated implementation of the measure at a national level. The development of the(More)
BACKGROUND An acceptable, standardised outcome measure to assess efficacy and effectiveness is needed across multiple disciplines offering psychological therapies. AIMS To present psychometric data on reliability, validity and sensitivity to change for the CORE-OM (Clinical Outcomes in Routine Evaluation--Outcome Measure). METHOD A 34-item self-report(More)
OBJECTIVE To evaluate benefits for postnatal women of two psychologically informed interventions by health visitors. DESIGN Prospective cluster trial randomised by general practice, with 18 month follow-up. SETTING 101 general practices in Trent, England. PARTICIPANTS 2749 women allocated to intervention, 1335 to control. INTERVENTION Health(More)
OBJECTIVES To provide an overview of methods to identify postnatal depression (PND) in primary care and to assess their validity, acceptability, clinical effectiveness and cost-effectiveness, to model estimates of cost, to assess whether any method meets UK National Screening Committee (NSC) criteria and to identify areas for future research. DATA SOURCES(More)
Three related studies are presented focusing on the development of a short 32-item version of the Inventory of Interpersonal Problems (IIP). Study 1 presents the procedures for item selection on the IIP short version; Study 2 presents a confirmatory analysis of the IIP short version on an independent sample; and Study 3 provides preliminary normative(More)
Criteria for reliable and clinically significant improvement were applied to standard and individually tailored outcome measures data from 212 depressed clients who had been randomly assigned to receive either 8 or 16 sessions of time-limiting psychotherapy. The data were used to address 2 questions: (a) Is the dose-effect curve for psychological symptoms(More)
OBJECTIVE To review the published literature on the effectiveness of web-based interventions designed to decrease consumption of alcohol and/or prevent alcohol abuse. METHOD Relevant articles published up to, and including, May 2006 were identified through electronic searches of Medline, PsycInfo, Embase, Cochrane Library, ASSIA, Web of Science and(More)
A total of 117 depressed clients, stratified for severity, completed 8 or 16 sessions of manualized treatment, either cognitive-behavioral psychotherapy (CB) or psychodynamic-interpersonal psychotherapy (PI). Each of 5 clinician-investigators treated clients in all 4 treatment conditions. On most measures, CB and PI were equally effective, irrespective of(More)
OBJECTIVE To investigate the size of therapist effects using multilevel modeling (MLM), to compare the outcomes of therapists identified as above and below average, and to consider how key variables--in particular patient severity and risk and therapist caseload--contribute to therapist variability and outcomes. METHOD We used a large practice-based data(More)
Sudden gains--large, enduring reductions in symptom intensity from one session to the next--were identified by T. Z. Tang and R. J. DeRubeis (1999b) on the basis of data from 2 manualized clinical trials of cognitive therapy for depression. The authors found similar sudden gains among clients with a variety of disorders treated with a variety of approaches(More)