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School-based programs seem promising for child abuse prevention. However, research mainly focused on sexual child abuse and knowledge is lacking on how individual program components contribute to the effectiveness of school-based prevention programs for any form of child abuse. This study aimed to examine the overall effect of these school-based programs on (a) children’s child abuse-related knowledge and (b) self-protection skills by conducting two three-level meta-analyses. Furthermore, moderator analyses were performed to identify how program components and delivery techniques were associated with effectiveness. A literature search yielded 34 studies (158 effect sizes; N = 11,798) examining knowledge of child abuse and 22 studies (99 effect sizes; N = 7804) examining self-protection skills. A significant overall effect was found of school-based programs on both knowledge (d = 0.572, 95% CI [0.408, 0.737], p d = 0.528, 95% CI [0.262, 0.794], p d = 0.909 for programs with this component versus d = 0.489 for programs without this component) and self-blame (d = 0.776 versus d = 0.412), and when puppets (d = 1.096 versus d = 0.500) and games or quizzes (d = 0.966 versus d = 0.494) were used. The second meta-analysis on children’s self-protections skills revealed that no individual components or techniques were associated with increased effectiveness. Several other study and program characteristics did moderate the overall effects and are discussed. In general, school-based prevention programs show positive effects on both knowledge and self-protection skills, and the results imply that program effectiveness can be improved by implementing specific components and techniques.

Inleiding: Het doel van deze overzichtsstudie was om meer kennis te verkrijgen over effecten van verschillende risicofactoren voor spijbelen en schooluitval door resultaten van eerder onderzoek statistisch samen te vatten. Methode: Na inclusie van 69 studies, waarin gerapporteerd werd over 1,384 effecten van (mogelijke) risicofactoren, werd elke factor geclassificeerd in één van in totaal 44 verschillende risicodomeinen. Vervolgens werd een reeks drie-level meta-analyses uitgevoerd om voor elk risicodomein een effect te schatten Resultaten: Een significant effect werd gevonden voor 40 risicodomeinen, variërend van r = .047 tot r = .336. Relatief grote effecten werden gevonden voor een verleden van doubleren, drugsmisbruik, slechte schoolresultaten, mentale (gezondheids-)problemen, antisociaal gedrag/antisociale cognities, weinig academisch zelfvertrouwen, en negatieve schoolhouding. Discussie: Veel verschillende kind-, gezins-, school- en peer-factoren hangen samen met spijbelen en schooluitval. De resultaten zijn belangrijk voor het succesvol terugdringen en voorkomen van schoolverzuim. Implicaties voor zowel risico- en behoeftetaxatie-instrumenten als interventiestrategieën worden besproken.

BackgroundHome visiting programs are widely endorsed for preventing child maltreatment. Yet, knowledge is lacking on what and how individual program components are related to the effectiveness of these programs.ObjectiveThe aim of this meta-analysis was to increase this knowledge by summarizing findings on effects of home visiting programs on child maltreatment and by examining potential moderators of this effect, including a range of program components and delivery techniques.MethodsA literature search yielded 77 studies (N=48,761) examining the effectiveness of home visiting programs, producing 174 effect sizes. In total, 35 different program components and delivery techniques were coded.ResultsA small but significant overall effect was found (d=0.135, 95 % CI (0.084, 0.187), pConclusionsIn general, home visiting programs can prevent child maltreatment only to a small extent. However, implementing specific components and techniques can improve program effectiveness.

Education and healthcare professionals are crucial in detecting and reporting child abuse and neglect. However, signs of child abuse are often undetected, and professionals tend to underreport their suspicions of abuse and neglect. This qualitative study aimed to examine experiences, attitudes, perspectives, and decision-making skills of healthcare and education professionals with regard to identifying and reporting child abuse and to gain insight into how detection and reporting can be improved. Semi-structured interviews were conducted with 49 Dutch professionals working in child health care, mental health care, primary schools, and secondary schools. The I-Change model was used as a theoretical framework to organize the results. Many professionals believe they miss child abuse signs in their daily work, partially due to a lack of focus on child abuse. Further, professionals indicated having insufficient knowledge of child abuse, and lack communication skills to detect or discuss signs indicative of child abuse in conversations with parents or children. As for risk assessment, professionals barely use structured instruments even though these are regarded as very helpful in the decision-making process. Finally, professionals experience deficits in the cooperation with child welfare organizations, and in particular with Child Protective Services (CPS). Various directions for improvement were discussed to overcome barriers in child abuse detection and reporting, including developing tools for detecting and assessing the risk of child abuse and improving communication and information transfer between organizations.

Interventies die kindermishandeling moeten voorkomen, hebben te weinig effect, blijkt uit onderzoek. Mogelijk komt dit doordat in de jeugdbescherming de ‘what works-principes’ onvoldoende worden toegepast. Om ook daar volgens deze principes te kunnen werken, zijn de ARIJ-Risk en ARIJ-Needs ontwikkeld.

There is a lack of knowledge about specific components that make interventions effective in preventing or reducing child maltreatment. The aim of the present meta-analysis was to increase this knowledge by summarizing findings on effects of interventions for child maltreatment and by examining potential moderators of this effect, such as intervention components and study characteristics. Identifying effective components is essential for developing or improving child maltreatment interventions. A literature search yielded 121 independent studies (N = 39,044) examining the effects of interventions for preventing or reducing child maltreatment. From these studies, 352 effect sizes were extracted. The overall effect size was significant and small in magnitude for both preventive interventions (d = 0.26, p < .001) and curative interventions (d = 0.36, p < .001). Cognitive behavioral therapy, home visitation, parent training, family-based/multisystemic, substance abuse, and combined interventions were effective in preventing and/or reducing child maltreatment. For preventive interventions, larger effect sizes were found for short-term interventions (0–6 months), interventions focusing on increasing self-confidence of parents, and interventions delivered by professionals only. Further, effect sizes of preventive interventions increased as follow-up duration increased, which may indicate a sleeper effect of preventive interventions. For curative interventions, larger effect sizes were found for interventions focusing on improving parenting skills and interventions providing social and/or emotional support. Interventions can be effective in preventing or reducing child maltreatment. Theoretical and practical implications are discussed.

Research in adolescent populations has shown that the severity, impact, and relative importance of dynamic risk factors for recidivism changes over the course of adolescence. This study examined whether there were age differences in the severity, impact, and relative importance of dynamic risk factors for recidivism in an adult offender population. The sample consisted of 8665 Dutch offenders and was divided into four age groups: 18–25 years old, 26–30 years old, 31–40 years old, and 41 + years old. The results showed that the severity and impact of dynamic risk factors varied across the age groups. An increase of the impact of dynamic risk factors was found over the course of adulthood, indicating that dynamic risk factors had a larger predictive power for recidivism in the older age groups. The relative importance of the risk factors also varied across age. In late adolescence, recidivism was most strongly predicted by problems in the education, alcohol use, and peer domains, whereas in adulthood, problems with drugs and alcohol were the most important predictors of recidivism. Results emphasize the importance of directing offender treatment at high risk offenders, and the focus on age specific criminogenic needs to maximize the effect of treatment.

This is the first meta-analytic review investigating what components and techniques of parent training programs for preventing or reducing child maltreatment are associated with program effectiveness. A literature search yielded 51 studies (N = 6670) examining the effectiveness of parent training programs for preventing or reducing child maltreatment. From these studies, 185 effect sizes were extracted and more than 40 program components and techniques were coded. A significant and small overall effect size was found (d = 0.416, 95% CI (0.334, 0.498), p < 0.001). No significant moderating effects were found for contextual factors and structural elements (i.e., program duration, delivery location, and delivery setting). Further, no significant moderating effects were found for most of the coded program components and techniques, indicating that these components are about equally effective. Only a few program components and techniques moderated program effectiveness, however these effects were negative. These results indicated that improving parental personal skills, improving problem solving skills, and stimulating children’s prosocial behavior should not be the main focus of parental training programs for preventing and reducing child maltreatment. This also holds for practicing new skills by rehearsal and giving direct feedback in program sessions. Further clinical implications and directions for future research are discussed.

School absenteeism and dropout are associated with many different life-course problems. To reduce the risk for these problems it is important to gain insight into risk factors for both school absenteeism and permanent school dropout. Until now, no quantitative overview of these risk factors and their effects was available. Therefore, this study was aimed at synthesizing the available evidence on risk factors for school absenteeism and dropout. In total, 75 studies were included that reported on 781 potential risk factors for school absenteeism and 635 potential risk factors for dropout. The risk factors were classified into 44 risk domains for school absenteeism and 42 risk domains for dropout. The results of a series of three-level meta-analyses yielded a significant mean effect for 28 school absenteeism risk domains and 23 dropout risk domains. For school absenteeism, 12 risk domains were found with large effects, including having a negative attitude towards school, substance abuse, externalizing and internalizing problems of the juvenile, and a low parent-school involvement. For dropout, the risk domains having a history of grade retention, having a low IQ or experiencing learning difficulties, and a low academic achievement showed large effects. The findings of the current study contribute to the fundamental knowledge of the etiology of school absenteeism and dropout which in turn contributes to a better understanding of the problematic development of adolescents. Further, more insight into the strength of effects of risk factors on school absenteeism and dropout is important for the development and improvement of both assessment, prevention and intervention strategies.

Risk assessment tools are increasingly being used to guide decisions about supervision and treatment of domestic violence perpetrators. However, earlier review studies showed that the predictive validity of most of these tools is limited, and is reflected in small average effect sizes. The present study aimed to meta-analytically examine the predictive validity of domestic violence risk assessment tools, and to identify tool characteristics that positively moderate the predictive validity. A literature search yielded 50 independent studies (N = 68,855) examining the predictive validity of 39 different tools, of which 205 effect sizes could be extracted. Overall, a significant discriminative accuracy was found (AUC = 0.647), indicating a moderate predictive accuracy. Tools specifically developed for assessing the risk of domestic violence performed as well as risk predictions based on victim ratings and tools designed for predicting general/violent criminal recidivism. Actuarial instruments (AUC = 0.657) outperformed Structured Clinical Judgment (SCJ) tools (AUC = 0.580) in predicting domestic violence. The onset of domestic violence (AUC = 0.744) could be better predicted than recurrence of domestic violence (AUC = 0.643), which is a promising finding for early detection and prevention of domestic violence. Suggestions for the improvement of risk assessment strategies are presented.

Martial arts are very popular among juveniles all over the world, but the relation between martial arts and externalizing behavior in juveniles remains unclear. The current multilevel meta-analysis of 12 studies, including 94 effect sizes and N = 5949 juveniles, was conducted to examine the relation between martial arts participation and externalizing behavior in juveniles, and to examine factors with a possible moderating effect. Results showed that there was no overall relation between martial arts participation and externalizing behavior in juveniles. However, a trim-and-fill procedure implicated publication bias of studies reporting that juvenile martial artist showed more externalizing behavior than non-martial artists, suggesting that the current overall outcomes might underestimate externalizing behavior in martial artists. Moderator analyses showed that studies published in higher impact factor journals, and studies with a higher training intensity in martial arts found more externalizing behavior in martial artists. Furthermore, karate was found to be less related to externalizing behavior than judo. Finally, in comparison with non-athletes and team sport athletes, martial artists showed similar levels of externalizing behavior, but they showed more externalizing behavior when compared to individual sport athletes. Implications for future policy and research are discussed.