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BackgroundPositive psychology interventions have been found to enhance well-being and decrease clinical symptomatology. However, it is still unknown how flourishing can also be increased. Although multicomponent interventions seem to be necessary for this purpose, different formats can be used. A cost-effective approach could be a positive psychology-based self-help book with tailored email support to reach large target groups and to prevent dropout. ObjectiveThis study will evaluate the efficacy of a comprehensive multicomponent self-help intervention with or without email support on well-being and flourishing, and will seek to determine the working mechanisms underlying the intervention. MethodsIn this 3-armed, parallel, randomized controlled trial, 396 participants with low or moderate levels of well-being and without clinical symptomatology will be randomly assigned to (1) a self-help book condition with weekly email support, (2) a self-help book condition without email support but with a weekly information email, or (3) a waiting list control condition. Online measurements will be assessed at baseline, at post-test (3 months after baseline), and at 6 and 12 months after baseline. ResultsThe primary outcomes are well-being and flourishing (ie, high levels of well-being). Secondary outcomes are the well-being components included in the intervention: positive emotion, use of strengths, optimism, self-compassion, resilience, and positive relations. Other measures include depressive and anxiety symptoms, personality traits, direct medical and non-medical costs, life-events, and client satisfaction. ConclusionsThis study will add knowledge to the efficacy and cost-effectiveness of a multicomponent positive psychology intervention. We will also explore who can benefit most from this intervention. If the intervention is found to be effective, our results will be especially relevant for public mental health services, governments, and primary care. Trial RegistrationThe Netherlands Trial Register NTR4297; http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=4297 (Archived by WebCite at http://webcitation.org/6Uwb5SUUM).

A study to identify the structure and the elements of a quality framework for addiction treatment programs is conducted. It is concluded that the specific quality framework that is identified has some similarity with existing non-specific frameworks.

The efficacy of several multicomponent positive psychology interventions (PPIs) have been demonstrated, but little is known about its possible mechanisms of change. We examined (1) the efficacy of an email guided self-help PPI on six core well-being processes (positive emotion, use of strengths, optimism, self-compassion, resilience and positive relations) and (2) the mediating role of these processes on mental well-being, anxiety and depressive symptoms. Adults ≥ 18 years were recruited in the general population and randomized into the intervention (n = 137) or wait-list control group (n = 138). Repeated measures analyses showed that the intervention group improved significantly more than the control group on all six processes. Improvement (t0-t1) on each process statistically mediated improvement (t0-t2) on mental well-being, anxiety and depressive symptoms. Simple-mediation analyses revealed small to moderate effect sizes. Multiple-mediation analyses revealed most pronounced results for positive relations and self-compassion, suggesting that these processes might be key mechanisms in promoting well-being. [ABSTRACT FROM AUTHOR]