Components of therapy as mechanisms of change in cognitive therapy for people at risk of psychosis: An analysis of the EDIE-2 trial
dc.contributor.author | Flach, Clare | * |
dc.contributor.author | French, Paul | * |
dc.contributor.author | Dunn, Graham | * |
dc.contributor.author | Fowler, David | * |
dc.contributor.author | Gumley, Andrew I. | * |
dc.contributor.author | Birchwood, Max | * |
dc.contributor.author | Stewart, Suzanne L. K. | * |
dc.contributor.author | Morrison, Anthony P. | * |
dc.date.accessioned | 2014-12-10T17:37:38Z | en |
dc.date.available | 2014-12-10T17:37:38Z | en |
dc.date.issued | 2015-05-21 | en |
dc.identifier.citation | The British Journal of Psychiatry, 207(2), 123-129 | |
dc.identifier.issn | 0007-1250 | en |
dc.identifier.doi | 10.1192/bjp.bp.114.153320 | en |
dc.identifier.uri | http://hdl.handle.net/10034/337035 | en |
dc.description | This is an author-produced electronic version of an article accepted for publication in the British Journal of Psychiatry. The definitive publisher-authenticated version is available online at http://bjp.rcpsych.org | en |
dc.description.abstract | Background: Research suggests that the way in which cognitive therapy is delivered is an important factor in determining outcomes. We test the hypotheses that the development of a shared problem list, use of case formulation, homework tasks and active intervention strategies will act as process variables. Methods: Presence of these components during therapy is taken from therapist notes. The direct and indirect effect of the intervention is estimated by an instrumental variable analysis. Results: A significant decrease in symptom score for case formulation (coefficient=-23, 95%CI -44 to -1.7, p=0.036) and homework (coefficient=-0.26, 95%CI -0.51 to -0.001, p=0.049) is found. Improvement with the inclusion of active change strategies is of borderline significance (coefficient= -0.23, 95%CI -0.47 to 0.005, p=0.056). Conclusions: There is a greater treatment effect if formulation and homework are involved in therapy. However, high correlation between components means that these may be indicators of overall treatment fidelity. | |
dc.language.iso | en | en |
dc.relation.url | http://bjp.rcpsych.org | en |
dc.subject | therapy | en |
dc.title | Components of therapy as mechanisms of change in cognitive therapy for people at risk of psychosis: An analysis of the EDIE-2 trial | en |
dc.type | Article | en |
dc.identifier.eissn | 1472-1465 | en |
dc.contributor.department | University of Manchester ; Greater Manchester West NHS Foundation Trust/Liverpool University ; University of Manchester ; University of Sussex ; University of Glasgow ; University of Warwick ; University of Chester ; Greater Manchester West NHS Foundation Trust/University of Manchester | en |
dc.identifier.journal | British Journal of Psychiatry | en |
rioxxterms.versionofrecord | https://doi.org/10.1192/bjp.bp.114.153320 | |
html.description.abstract | Background: Research suggests that the way in which cognitive therapy is delivered is an important factor in determining outcomes. We test the hypotheses that the development of a shared problem list, use of case formulation, homework tasks and active intervention strategies will act as process variables. Methods: Presence of these components during therapy is taken from therapist notes. The direct and indirect effect of the intervention is estimated by an instrumental variable analysis. Results: A significant decrease in symptom score for case formulation (coefficient=-23, 95%CI -44 to -1.7, p=0.036) and homework (coefficient=-0.26, 95%CI -0.51 to -0.001, p=0.049) is found. Improvement with the inclusion of active change strategies is of borderline significance (coefficient= -0.23, 95%CI -0.47 to 0.005, p=0.056). Conclusions: There is a greater treatment effect if formulation and homework are involved in therapy. However, high correlation between components means that these may be indicators of overall treatment fidelity. |