effectiveness trials in birmingham: design and challenges vashti berry
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Effectiveness Trials in Birmingham: design and
challenges
Vashti Berry
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A Brighter Future for Children and Young People in Birmingham
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The PATHS Programme (Promoting Alternative Thinking Strategies)
Incredible YearsTriple P
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Design• IY = 168, 3-4 year-olds, 2:1 randomisation, child is unit of
randomisation, stratified by age & sex, 9 Children Centres across city, 3 data collection points
• TP = 146, 4-9 year-olds, 1:1 randomisation, child is unit of randomisation, stratified by age & sex, 7 areas across city, 3 data collection points
• PATHS = 56 schools cluster randomised trial, stratified by size & % FSM, 1:1, Reception & Year 1 & 2 classes, 3 data main collection points (Oct, June 2010, June 2011)
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The ‘real world’: testing effectiveness
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Fidelity in the trials
• Exposure / Dose• Adherence• Quality• Responsiveness / Engagement
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Trials are ongoing…
www.dartington.org.uk
www.preventionaction.orgDaily news on prevention science & its application to policy and
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