Multisystemic therapy in New Zealand : effectiveness and predictors of outcome : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Psychology at Massey University, Turitea Campus, Palmerston North, New Zealand

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dc.contributor.authorRussell, Claire Jennifer
dc.date.accessioned2009-02-19T01:48:27Z
dc.date.availableNO_RESTRICTIONen_US
dc.date.available2009-02-19T01:48:27Z
dc.date.issued2008
dc.description.abstractA one-group pre-test post-test design (including 6- and 12-month follow-up), supplemented with benchmarking analyses, was employed to assess the effectiveness of Multisystemic Therapy (MST) for youth displaying antisocial behaviours in New Zealand. An additional aim of the current study was to assess for predictors and moderators of outcome. The predictor variables assessed included: Client satisfaction, therapeutic and supervisory alliance, therapist and supervisor adherence, therapist and supervisor allegiance, and therapist and supervisor accountability. Seventy-three youth and their families completed the MST program (M = 162 days) and the present study’s measures. Youth and their families experienced improvements in ultimate outcomes (offending frequency, offending seriousness, and days in out-of-home placements) and instrumental outcomes (youth positive and negative behaviour, parent well-being and psychopathology, parent ability, and family functioning) following MST treatment. With a few exceptions, these gains were largely maintained up to 12 months following treatment. Benchmarking analyses indicated that the completion rate and effect sizes were comparable with those from previous MST studies both in New Zealand and the United States. The predictor variables of service satisfaction, therapeutic alliance, and therapist adherence predicted higher levels of change in most instrumental outcomes as expected. However, of significant importance, higher supervisor adherence and supervisory alliances were associated with significantly lower therapist adherence, therapeutic alliance, and some client outcomes. Furthermore, the few significant interactions between predictor variables produced mixed findings, many of which contradicted widely held assumptions. As MST has been demonstrated to be an effective treatment for youth offenders in New Zealand, continuing dissemination and ongoing evaluation of MST in New Zealand is recommended. In particular, given the negative impact of supervision variables on therapist adherence, therapeutic alliance, and some client outcomes, this would include research aimed at assessing various quality control functions of supervision, including supervisor training, mechanisms of supervision related to therapist and client variables, and the potential value of more closely monitoring the process of supervision.en_US
dc.identifier.urihttp://hdl.handle.net/10179/720
dc.language.isoenen_US
dc.publisherMassey Universityen_US
dc.rightsThe Authoren_US
dc.subjectMultisystemic therapyen_US
dc.subjectPsychotherapyen_US
dc.subjectAntisocial behaviouren_US
dc.subjectYouthen_US
dc.subjectNew Zealanden_US
dc.subject.otherFields of Research::380000 Behavioural and Cognitive Sciences::380100 Psychology::380105 Social and community psychologyen_US
dc.titleMultisystemic therapy in New Zealand : effectiveness and predictors of outcome : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Psychology at Massey University, Turitea Campus, Palmerston North, New Zealanden_US
dc.typeThesisen_US
massey.contributor.authorRussell, Claire Jennifer
thesis.degree.disciplinePsychologyen_US
thesis.degree.grantorMassey Universityen_US
thesis.degree.levelDoctoralen_US
thesis.degree.levelDoctoralen
thesis.degree.nameDoctor of Philosophy (Ph.D.)en_US
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