802 resultados para Evidence-based programs


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The main contribution of this special issue is to present evaluation studies involving large-scale experiences of implementation of positive parenting programs delivered through home, group-based, and on-line formats in Spain. Two research questions were addressed: (1) what factors affect implementation; and (2) for whom and under which implementation conditions the programs lead to positive outcomes. Target populations were mainly families from low and middle socioeconomic backgrounds, and parents at psychosocial risk attending family support services in need of improving their parenting skills. All the programs fall under the umbrella of the positive parenting initiative launched by the Council of Europe, are evidence-based, follow a collaborative schema with national, regional, or local authorities, have multi-site implementation, and are supported by highly experienced researchers from Spanish universities. Special attention is given to the program adaptations to different contexts, the profile of parents who benefited most from the programs, analyses of the implementation process, and the assessment of parenting programs in the community. The information provided will help to increase our knowledge of evidence-based parenting programs in Spain, their implementation processes and results, and the future challenges that need to be addressed to continue the current expansion of evidence-based parenting programs.

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Family prevention programs need to be evidence-based in order to guarantee the success of their implementation. The Family Competence Program (FCP), a Spanish cultural adaptation of the Strengthening Families Program (SFP), has developed different measures and processes to gauge the quality of the implementation. This article is dedicated specifically to two of these measures: the evaluation of the facilitators and the assessment of the family engagement techniques. For evaluating the facilitators, a Delphi technique with experts and professionals is undertaken. For assessing the family techniques, both self-evaluation of trainers and evaluation by families are used. Finding underpin that, in the case of facilitators, is important that, after to skills and experience, they need to understand the theory of change of the program. In the case of family engagement techniques, more detailed, comprehensive talks, discussions and group activities lead to better family engagement outcomes.

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Over thirty years ago, Leamer (1983) - among many others - expressed doubts about the quality and usefulness of empirical analyses for the economic profession by stating that "hardly anyone takes data analyses seriously. Or perhaps more accurately, hardly anyone takes anyone else's data analyses seriously" (p.37). Improvements in data quality, more robust estimation methods and the evolution of better research designs seem to make that assertion no longer justifiable (see Angrist and Pischke (2010) for a recent response to Leamer's essay). The economic profes- sion and policy makers alike often rely on empirical evidence as a means to investigate policy relevant questions. The approach of using scientifically rigorous and systematic evidence to identify policies and programs that are capable of improving policy-relevant outcomes is known under the increasingly popular notion of evidence-based policy. Evidence-based economic policy often relies on randomized or quasi-natural experiments in order to identify causal effects of policies. These can require relatively strong assumptions or raise concerns of external validity. In the context of this thesis, potential concerns are for example endogeneity of policy reforms with respect to the business cycle in the first chapter, the trade-off between precision and bias in the regression-discontinuity setting in chapter 2 or non-representativeness of the sample due to self-selection in chapter 3. While the identification strategies are very useful to gain insights into the causal effects of specific policy questions, transforming the evidence into concrete policy conclusions can be challenging. Policy develop- ment should therefore rely on the systematic evidence of a whole body of research on a specific policy question rather than on a single analysis. In this sense, this thesis cannot and should not be viewed as a comprehensive analysis of specific policy issues but rather as a first step towards a better understanding of certain aspects of a policy question. The thesis applies new and innovative identification strategies to policy-relevant and topical questions in the fields of labor economics and behavioral environmental economics. Each chapter relies on a different identification strategy. In the first chapter, we employ a difference- in-differences approach to exploit the quasi-experimental change in the entitlement of the max- imum unemployment benefit duration to identify the medium-run effects of reduced benefit durations on post-unemployment outcomes. Shortening benefit duration carries a double- dividend: It generates fiscal benefits without deteriorating the quality of job-matches. On the contrary, shortened benefit durations improve medium-run earnings and employment possibly through containing the negative effects of skill depreciation or stigmatization. While the first chapter provides only indirect evidence on the underlying behavioral channels, in the second chapter I develop a novel approach that allows to learn about the relative impor- tance of the two key margins of job search - reservation wage choice and search effort. In the framework of a standard non-stationary job search model, I show how the exit rate from un- employment can be decomposed in a way that is informative on reservation wage movements over the unemployment spell. The empirical analysis relies on a sharp discontinuity in unem- ployment benefit entitlement, which can be exploited in a regression-discontinuity approach to identify the effects of extended benefit durations on unemployment and survivor functions. I find evidence that calls for an important role of reservation wage choices for job search be- havior. This can have direct implications for the optimal design of unemployment insurance policies. The third chapter - while thematically detached from the other chapters - addresses one of the major policy challenges of the 21st century: climate change and resource consumption. Many governments have recently put energy efficiency on top of their agendas. While pricing instru- ments aimed at regulating the energy demand have often been found to be short-lived and difficult to enforce politically, the focus of energy conservation programs has shifted towards behavioral approaches - such as provision of information or social norm feedback. The third chapter describes a randomized controlled field experiment in which we discuss the effective- ness of different types of feedback on residential electricity consumption. We find that detailed and real-time feedback caused persistent electricity reductions on the order of 3 to 5 % of daily electricity consumption. Also social norm information can generate substantial electricity sav- ings when designed appropriately. The findings suggest that behavioral approaches constitute effective and relatively cheap way of improving residential energy-efficiency.

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La formation des sociétés fondées sur la connaissance, le progrès de la technologie de communications et un meilleur échange d'informations au niveau mondial permet une meilleure utilisation des connaissances produites lors des décisions prises dans le système de santé. Dans des pays en voie de développement, quelques études sont menées sur des obstacles qui empêchent la prise des décisions fondées sur des preuves (PDFDP) alors que des études similaires dans le monde développé sont vraiment rares. L'Iran est le pays qui a connu la plus forte croissance dans les publications scientifiques au cours de ces dernières années, mais la question qui se pose est la suivante : quels sont les obstacles qui empêchent l'utilisation de ces connaissances de même que celle des données mondiales? Cette étude embrasse trois articles consécutifs. Le but du premier article a été de trouver un modèle pour évaluer l'état de l'utilisation des connaissances dans ces circonstances en Iran à l’aide d'un examen vaste et systématique des sources suivie par une étude qualitative basée sur la méthode de la Grounded Theory. Ensuite au cours du deuxième et troisième article, les obstacles aux décisions fondées sur des preuves en Iran, sont étudiés en interrogeant les directeurs, les décideurs du secteur de la santé et les chercheurs qui travaillent à produire des preuves scientifiques pour la PDFDP en Iran. Après avoir examiné les modèles disponibles existants et la réalisation d'une étude qualitative, le premier article est sorti sous le titre de «Conception d'un modèle d'application des connaissances». Ce premier article sert de cadre pour les deux autres articles qui évaluent les obstacles à «pull» et «push» pour des PDFDP dans le pays. En Iran, en tant que pays en développement, les problèmes se situent dans toutes les étapes du processus de production, de partage et d’utilisation de la preuve dans la prise de décision du système de santé. Les obstacles qui existent à la prise de décision fondée sur des preuves sont divers et cela aux différents niveaux; les solutions multi-dimensionnelles sont nécessaires pour renforcer l'impact de preuves scientifiques sur les prises de décision. Ces solutions devraient entraîner des changements dans la culture et le milieu de la prise de décision afin de valoriser la prise de décisions fondées sur des preuves. Les critères de sélection des gestionnaires et leur nomination inappropriée ainsi que leurs remplaçants rapides et les différences de paiement dans les secteurs public et privé peuvent affaiblir la PDFDP de deux façons : d’une part en influant sur la motivation des décideurs et d'autre part en détruisant la continuité du programme. De même, tandis que la sélection et le remplacement des chercheurs n'est pas comme ceux des gestionnaires, il n'y a aucun critère pour encourager ces deux groupes à soutenir le processus décisionnel fondés sur des preuves dans le secteur de la santé et les changements ultérieurs. La sélection et la promotion des décideurs politiques devraient être basées sur leur performance en matière de la PDFDP et les efforts des universitaires doivent être comptés lors de leurs promotions personnelles et celles du rang de leur institution. Les attitudes et les capacités des décideurs et des chercheurs devraient être encouragés en leur donnant assez de pouvoir et d’habiliter dans les différentes étapes du cycle de décision. Cette étude a révélé que les gestionnaires n'ont pas suffisamment accès à la fois aux preuves nationales et internationales. Réduire l’écart qui sépare les chercheurs des décideurs est une étape cruciale qui doit être réalisée en favorisant la communication réciproque. Cette question est très importante étant donné que l'utilisation des connaissances ne peut être renforcée que par l'étroite collaboration entre les décideurs politiques et le secteur de la recherche. Dans ce but des programmes à long terme doivent être conçus ; la création des réseaux de chercheurs et de décideurs pour le choix du sujet de recherche, le classement des priorités, et le fait de renforcer la confiance réciproque entre les chercheurs et les décideurs politiques semblent être efficace.

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L'anémie de l'enfant reste un problème d'importance pour la santé mondiale, malgré les décennies de recherche visant à comprendre son étiologie et à développer des interventions efficaces pour réduire sa prévalence et ses conséquences. Bien que les facteurs de risque individuels de l'anémie soient connus, y compris les facteurs liés à la malnutrition et à la morbidité, l'interaction entre lesdits facteurs est moins documentée dans des contextes où les enfants sont fréquemment exposés à plusieurs facteurs en même temps. Cette étude vise à documenter les efforts de lutte contre l'anémie du programme MICAH qui a été mis en oeuvre au Ghana, au Malawi et en Tanzanie. Ensuite, en utilisant les données relatives à la fois au processus et à l'évaluation colligées au cours du programme, elle vise à mieux comprendre les facteurs de risque d'anémie chez les jeunes enfants dans ces contextes et à comprendre comment les relations entre ces facteurs peuvent avoir changé au fil du temps lors de l'intervention. Spécifiquement, cette étude vérifie s‘il y a des preuves d'une réduction de la vulnérabilité des enfants aux facteurs de risque associés à l'anémie dans chaque contexte. Un examen de la documentation a été réalisé afin de caractériser le contexte du programme et des interventions, leur l'intensité et étendue. Les données transversales sur la nutrition et l'état de santé des enfants âgés de 24 à 59 mois (N = 2405) obtenues en 2000 et 2004 à partir des enquêtes d'évaluation du programme MICAH au Ghana, au Malawi et en Tanzanie, ont été utilisées pour décrire la prévalence de l'anémie. Les modèles polynomiaux de régression logistique et linéaire ont été utilisés pour estimer les risques d'anémie légère et d'anémie modérée / sévère et les niveaux d‘hémoglobine associés à des groupes de variables. Les estimations du risque attribuable à une population (RAP) ont aussi été calculées. Une anémie (Hb <110 g/L) a touché au moins 60% des enfants dans les trois pays; l'anémie modérée / sévère (<100 g/L) constituait la majorité des cas. Une forte diminution de l'anémie a été observée entre 2000 et 2004 au Ghana, mais seulement une légère baisse au Malawi et en Tanzanie. Le risque d'anémie modérée / sévère était associé au retard de croissance chez les enfants du Ghana (OR 2,68, IC 95% 1,70-4,23) et du Malawi (OR 1,71; 1,29-2,27) mais pas de la Tanzanie (OR 1,29; 0,87- 1,92). Le paludisme et les maladies récentes étaient associées à une hémoglobine plus basse. Une atténuation de cette association en 2004 a été observée seulement au Malawi pour le paludisme et au Ghana pour les maladies récentes. Le risque d'anémie modérée / sévère était 44% moindre chez les enfants âgés de 48 à 59 mois comparativement aux enfants de 24 à 35 mois dans les trois pays et cela n'a pas changé entre 2000 et 2004. Les RAP estimés ont montré qu‘environ un cinquième des cas d‘anémie modérée à sévère était attribuable au retard de croissance au Ghana et Malawi, mais pas en Tanzanie. Des RAP moindres et dépendants des contextes ont été trouvés pour le paludisme et les maladies récentes. Dans ces zones d‘intervention intégrées de santé et de nutrition la relation de certains facteurs de risque à l'anémie se modifia avec le temps. Le retard de croissance est resté toutefois un facteur de risque indépendant et non mitigé de l'anémie. Une réduction efficace des causes de la malnutrition chronique est nécessaire afin de réduire la vulnérabilité des enfants et de garantir un impact maximum des programmes de lutte contre l'anémie. Une mitigation de l'impact du paludisme peut par contre être visée dans les régions endémiques.

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The ability of public health practitioners (PHPs) to work efficiently and effectively is negatively impacted by their lack of knowledge of the broad range of evidence-based practice information resources and tools that can be utilized to guide them in their development of health policies and programs. This project, a three-hour continuing education hands-on workshop with supporting resources, was designed to increase knowledge and skills of these resources. The workshop was presented as a pre-conference continuing education program for the Texas Public Health Association (TPHA) 2008 Annual Conference. Topics included: identification of evidence-based practice resources to aid in the development of policies and programs; identification of sources of publicly available data; utilization of data for community assessments; and accessing and searching the literature through a collection of databases available to all citizens of Texas. Supplemental resources included a blog that served as a gateway to the resources explored during the presentation, a community assessment workbook that incorporates both Healthy People 2010 objectives and links to reliable sources of data, and handouts providing additional instruction on the use of the resources covered during the workshop.^ Before- and after-workshop surveys based on Kirkpatrick's 4-level model of evaluation and the Theory of Planned Behavior were administered. Of the questions related to the trainer, the workshop, and the usefulness of the workshop, participants gave "Good" to "Excellent" responses to all one question. Confidence levels overall increased a statistically significant amount; measurements of attitude, social norms, and control showed no significant differences before and after the workshop. Lastly, participants indicated they were likely to use resources shown during the workshop within a one to three month time period on average. ^ The workshop and creation of supplemental resources served as a pilot for a funded project that will be continued with the development and delivery of four 4-week long webinar-based training sessions to be completed by December 2008. ^

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Thesis (Master's)--University of Washington, 2016-06

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Study Objective: Community-based models for injury prevention have become an accepted part of the overall injury control strategy. This systematic review of the scientific literature examines the evidence for their effectiveness in reducing injury due to inadequate car seat restraint use in children 0-16 years of age. Methods: A comprehensive search of the literature was performed using the following study selection criteria: community-based intervention study: target population was children aged 0-16 years of age; outcome measure was either injury rates due to motor vehicle crashes or observed changes in child restraint use; and use of community control or historical control in the study design. Quality assessment and data abstraction was guided by a standardized procedure and performed independently by two authors. Data synthesis was in tabular and text form with meta-analysis not being possible due to the discrepancy in methods and measures between the studies. Results: This review found eight studies, that met all the inclusion criteria. In the studies that measured injury outcomes, significant reductions in risk of motor vehicle occupant injury (33-55%) were reported in the study communities. For those studies reporting observed car seat restraint use the community-based programs were successful in increasing toddler restraint use in 1-5 year aged children by up to 11%; child booster seat use in 4-8 year aged children by up to 13%; rear restraint use in children aged 0-15 years by 8%; a 50% increase in restraint use in pre-school aged children in a high-risk community; and a 44% increase in children aged 5-11 years. Conclusion: While this review highlights that there is some evidence to support the effectiveness of community-based programs to promote car restraint use and/or motor vehicle occupant injury, limitations in the evaluation methodologies of the studies requires the results to be interpreted with caution. There is clearly a need for further high quality program evaluation research to develop an evidence base. (C) 2004 Elsevier Ltd. All rights reserved.

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Background: This study used household survey data on the prevalence of child, parent and family variables to establish potential targets for a population-level intervention to strengthen parenting skills in the community. The goals of the intervention include decreasing child conduct problems, increasing parental self-efficacy, use of positive parenting strategies, decreasing coercive parenting and increasing help-seeking, social support and participation in positive parenting programmes. Methods: A total of 4010 parents with a child under the age of 12 years completed a statewide telephone survey on parenting. Results: One in three parents reported that their child had a behavioural or emotional problem in the previous 6 months. Furthermore, 9% of children aged 2–12 years meet criteria for oppositional defiant disorder. Parents who reported their child's behaviour to be difficult were more likely to perceive parenting as a negative experience (i.e. demanding, stressful and depressing). Parents with greatest difficulties were mothers without partners and who had low levels of confidence in their parenting roles. About 20% of parents reported being stressed and 5% reported being depressed in the 2 weeks prior to the survey. Parents with personal adjustment problems had lower levels of parenting confidence and their child was more difficult to manage. Only one in four parents had participated in a parent education programme. Conclusions: Implications for the setting of population-level goals and targets for strengthening parenting skills are discussed.

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Objective: To pilot a clinical information service for general practitioners. Methods: A representative sample of 31 GPs was invited to submit clinical questions to a local academic department of general practice. Their views on the service and the usefulness of the information were obtained by telephone interview. Results: Over one month, nine GPs (29% of the sample, 45% of those stating an interest), submitted 20 enquiries comprising 45 discrete clinical questions. The median time to search for evidence, appraise it and write answers to each enquiry was 2.5 hours (range, 1.0-7.4 hours). The median interval between receipt of questions and dispatch of answers was 3 clays (range, 1-12 days). Conclusions: The GPs found the answers useful in clinical decision making; in four out of 20 cases patient management was altered.