Interrelatedness of Family and Parenting Risk Factors for Juvenile Delinquency: A Network Study in U.S. and Dutch Juveniles.

Family interventions that address a diversity of family and parenting factors are often used to prevent juvenile delinquency, but are effective to only a limited extent. This study applied a network approach to risk factors for juvenile delinquency and examined the interrelatedness of specifically family and parenting risk factors in a U.S. and separate Dutch sample of juveniles and their family members. Differences in interrelatedness between these samples were examined as well. Secondary analyses were conducted on data collected in the United States with the Washington State Juvenile Court Assessment (WSJCA) and on data collected in the Netherlands with a Dutch-adapted translation of the WSJCA. Network analyses were performed, separately for the U.S. (N = 13,613) and Dutch (N = 3,630) sample, on seven risk factors that were assessed with a three-point Likert scale ranging from each factor's protective side to a corresponding risk side. In the U.S. sample network, "inadequate parental punishment" and "lack of parental supervision" that both refer to an authoritarian parenting style were the most "central" factors and had the strongest associations with the other risk factors. In the Dutch sample network, "the family not providing opportunities" and "inadequate parental reward" were the most "central" factors, which refer to an authoritative parenting style. The family and parenting factors identified as most central in the networks may be promising to address in family interventions, as it can be expected that both the directly addressed problems and their correlated problems will improve. The current results may inform attempts to strengthen family interventions for juvenile delinquency in the United States and the Netherlands.

Protective Factors for Antisocial Behavior in Youth: What is the Meta-Analytic Evidence?

Although both risk and protective factors are important components of etiological theories for antisocial behavior, far less is known about protective factors and their impact. This review summarized primary studies on the impact of different protective factors for antisocial behavior in youth. In total, 305 studies reporting on 1850 potentially protective factors were included. Each extracted factor was first classified into one of 77 mutually exclusive groups of similar factors (referred to as domains), after which a three-level meta-analysis was conducted to determine the protective effect of each domain. A significant and negative effect was found for 50 domains, which were therefore designated as being truly protective. The largest impact (r < -0.20) was found for higher levels of conservativeness, self-transcendence, life satisfaction, involvement in romantic relationships, the capacity to reflect or mentalize, peer relationships quality, prosocial peers, prosocial values, agreeableness, school self-esteem, parental control, general resilience, and social skills. Analyses revealed that the impact of some of the 77 domains was moderated by the youth's age (five domains) and gender (four domains) as well as the severity of antisocial behavior they exhibit (two domains), indicating that the impact of these domains differs across subgroups of antisocial youth. Given the substantial number of factors that were identified as being protective for antisocial behavior in youth, this study discusses implications for future directions, assessment strategies, and (preventive) interventions.

Differences in developmental problems between victims of different types of child maltreatment.

This study examined differences in developmental problems between children who were victims of two child maltreatment dimensions: abuse versus neglect, and physical versus emotional maltreatment. Family demographics and developmental problems were examined in a clinical sample of 146 Dutch children from families involved in a Multisystemic Therapy - Child Abuse and Neglect treatment trajectory. No differences were found in child behavior problems within the dimension abuse versus neglect. However, more externalizing behavior problems (e.g., aggressive problems) were found in children who experienced physical maltreatment compared to children who experienced emotional maltreatment. Further, more behavior problems (e.g., social problems, attention problems, and trauma symptoms) were found in victims of multitype maltreatment compared to victims of any single-type maltreatment. The results of this study increase the understanding of the impact of child maltreatment poly-victimization, and highlight the value of classifying child maltreatment into physical and emotional maltreatment.

Adding Structured Components to Home Visitation to Reduce Mothers' Risk for Child Maltreatment: a Randomized Controlled Trial.

Purpose: Home visitation program effects are generally small, which may be caused by flexible intervention content leading to inconsistent outcomes. In this study we therefore examined whether the effectiveness of a Dutch home visitation program (i.e., Supportive Parenting) can be improved by adding structured intervention components targeting key risk factors for child maltreatment: parental sense of competence, perceived stress, parental anger, and PTSD symptoms. Method: Participants were randomly assigned to an experimental group (n = 74) that received four additional intervention components in two home visits, or a control group (n = 60) that received regular Supportive Parenting. Outcomes were assessed before (T1) and after (T2) the first, and before (T3) and after (T4) the second home visit. Effects were examined using ANCOVA for primary outcomes: parental sense of competence, perceived stress, parental anger, and PTSD symptoms, and secondary outcomes: risk of child maltreatment, parental warmth, and negative parenting. Moderation effects were examined for T1 scores, child temperament and life events. Results: Mothers who received the intervention components showed less stress compared to the control group at T3 and T4. There were no differences between groups on other outcomes and no moderation effects, although parental sense of competence reduced and anger increased within the experimental group specifically. Conclusion: The structured components may enhance the effectiveness of Supportive Parenting to reduce parenting stress. Future research into how other outcomes can be improved is needed. Supplementary Information: The online version contains supplementary material available at 10.1007/s10896-023-00509-7.

Personalizing Child Protection: The Clinical Value and Usability of a Needs Assessment Instrument in The Netherlands.

Studies on child maltreatment prevention programs show that the effects of these programs are rather small. Drawing on the need principle of the Risk-Need-Responsivity model, program effects may be enhanced by properly assessing all the needs of individual families involved in child protection so that programs can be adapted to those needs. Recently, a needs assessment tool (ARIJ-Needs) has been developed in the Netherlands to support child protection practitioners in not only the assessment of treatment needs in individual families, but also in selecting the program(s) and/or intervention(s) that best target those needs. This study assessed the clinical value and usability of ARIJ-Needs by interviewing Dutch child protection practitioners (N = 15). A vignette describing a child protection case was used to examine differences between needs assessments based on unstructured clinical judgment (i.e., without using the assessment tool), and structured clinical judgment in which the assessment tool was used. The results showed that significantly more treatment needs were identified when ARIJ-Needs was used relative to clinical judgment in which ARIJ-Needs was not used. Specifically, needs related to parenting, the parent(s), and the family were identified more often when the assessment tool was used. This is an important finding, as these needs comprise the (changeable) risk factors that are most predictive of child maltreatment and should be addressed with priority to prevent child maltreatment. This study shows that ARIJ-Needs supports practitioners in assessing relevant needs in families at risk for child maltreatment. Study implications and recommendations for improvement of the ARIJ-Needs are discussed.

The Association between School Corporal Punishment and Child Developmental Outcomes: A Meta-Analytic Review.

School corporal punishment (SCP) is still widely used in many countries. Although primary studies have pointed toward detrimental effects of SCP, a quantitative review of these studies was not yet available. To gain better insight into effects of SCP, three meta-analyses were conducted on the association between SCP and children's (1) externalizing behavior, (2) internalizing behavior, and (3) school performance. These meta-analyses synthesized 21 studies (120 effect sizes; N = 67,400), 14 studies (18 effect sizes; N = 39,917), and 20 studies (47 effect sizes; N = 977,367), respectively. Studies were synthesized using a three-level approach to meta-analysis. The results revealed that SCP is positively associated with externalizing behavior (r = 0.27, p < 0.001) and internalizing behavior of children (r = 0.16, p < 0.001), and negatively with children's school performance (r = −0.11, p < 0.001). This review concludes that SCP is a risk factor for externalizing behavior, internalizing behavior, and reduced school performance of children. Other techniques than SCP should be used for class management, and we recommend psychoeducational programs for schools and the wider community in which corporal punishment is still used. These programs should convey the detrimental effects of SCP and alternative discipline techniques. More awareness of the detrimental effects of SCP is needed to make the school environment a safe place for all children across the world.

Gender Differences Between Domestic Violent Men and Women: Criminogenic Risk Factors and Their Association With Treatment Dropout.

Although many studies have concluded that men and women engage in domestic violence at equal levels, existing studies have hardly focused on gender specific risk factors for domestic violence perpetration. Therefore, this study aimed to examine gender differences in criminogenic risk factors between Dutch male and female forensic outpatients who were referred to forensic treatment for domestic violence. Clinical structured assessments of criminogenic risk factors were retrieved for 366 male and 87 female outpatients. Gender differences were not only found in the prevalence and interrelatedness of criminogenic risk factors, but also in associations between criminogenic risk factors and treatment dropout. In men, risk factors related to the criminal history, substance abuse, and criminal attitudes were more prevalent than in women, whereas risk factors related to education/work, finances, and the living environment were more prevalent in women. Further, having criminal friends, having a criminal history, and drug abuse were associated with treatment dropout in men, whereas a problematic relationship with family members, housing instability, a lack of personal support, and unemployment were associated with treatment dropout in women. Finally, network analyses revealed gender differences in risk factor interrelatedness. The results provide important insights into gender specific differences in criminogenic risk factors for domestic violence, which support clinical professionals in tailoring treatment to the specific needs of male and female perpetrators of domestic violence.

Effective Components of School-Based Prevention Programs for Child Abuse: A Meta-Analytic Review.

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 < 0.001) and self-protection skills (d = 0.528, 95% CI [0.262, 0.794], p < 0.001). The results of the first meta-analysis on children's child abuse knowledge suggest that program effects were larger in programs addressing social-emotional skills of children (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.

Validation and further development of a risk assessment instrument for child welfare.

BACKGROUND: Although many child maltreatment risk assessment instruments have been implemented in child welfare organizations, thorough studies on their predictive validity are scarce. OBJECTIVE: To examine (1) the predictive validity of a risk assessment instrument that has been widely implemented in the Netherlands, and to examine (2) whether the actuarial risk estimation could be improved and simplified to widen the instrument's applicability to different organizations serving different populations. PARTICIPANTS AND SETTING: The sample comprised risk assessments (N = 3,681) performed for families enrolled at one of five child welfare agencies in the Netherlands between January 2015 and December 2017. METHODS: In a follow-up period of at least one year, child maltreatment was operationalized as whether or not child protection orders, residential care, or hotline reports occurred. Area Under the Curve values were calculated to determine the predictive accuracy of the risk classifications. Chi-square Automatic Interaction Detection was used to develop a new risk classification based on a new cumulative risk variable. RESULTS: The original risk classification and the newly developed and simplified risk classification showed a similar discriminative accuracy for the different outcome measures: Area Under the Curve values were .68 and .69 for child protection orders, .62 and .63 for residential care, and .58 and .60 for hotline reports, respectively. CONCLUSIONS: The original and new risk classification of the instrument had a medium predictive validity with the latter being simpler, more widely applicable, and based on more valid risk factors.

Components associated with the effect of home visiting programs on child maltreatment: A meta-analytic review.

BACKGROUND: Home 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. OBJECTIVE: The 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. METHODS: A 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. RESULTS: A small but significant overall effect was found (d=0.135, 95 % CI (0.084, 0.187), p<0.001). Programs that focused on improving parental expectations of the child or parenthood in general (d = 0.308 for programs with this component versus d = 0.112 for programs without this component), programs targeting parental responsiveness or sensitivity to a child's needs (d = 0.238 versus d = 0.064), and programs using video-based feedback (d = 0.397 versus d = 0.124) yielded relatively larger effects. Providing practical and instrumental assistance was negatively associated with program effectiveness (d=0.044 versus d = 0.168). Further, program effects were larger when percentages of non-Caucasians/non-Whites in samples and follow-up durations increased. CONCLUSIONS: In general, home visiting programs can prevent child maltreatment only to a small extent. However, implementing specific components and techniques can improve program effectiveness.

Effects of Awareness Programs on Juvenile Delinquency: A Three-Level Meta-Analysis.

Juvenile awareness programs, such as Scared Straight, remain in use despite the finding that these programs provoke rather than prevent delinquency. The aim of this study was to examine what program components are associated with program effectiveness, which is important for improving these programs. A three-level meta-analysis was conducted. A literature search yielded 13 independent studies (N = 1,536) from which 88 effect sizes could be extracted. A nonsignificant overall effect was found (d = 0.10), indicating that juvenile awareness programs have no effect on offending behavior and other outcomes that are related to delinquency. No significant moderator effects were found for program components. The moderator analyses revealed that juvenile awareness programs are effective in reducing antisocial attitudes (d = 0.46), which has not been meta-analytically studied before. Furthermore, larger effects were found as follow-up length increased. These results show a more nuanced view on the effectiveness of juvenile awareness programs is necessary.

Mental Health Problems in Girls Who Committed Sexual Offenses: Similarities and Differences Compared to Girls With Non-sex Offenses and Boys With Sex Offenses.

Female juvenile offenders have only recently shifted into the focus of research. Moreover, a specific subgroup, female juveniles who sexually offended (JSO) are greatly overlooked. Therefore, there is a dearth of knowledge regarding the characteristics of female JSOs. The aim of the current study was to explore mental health problems (MHP) of female JSOs in more detail. Moreover, we compared their mental health with female juveniles who committed non-sexual offenses (JNSOs) and male JSOs. The sample comprised 33 female JSOs (Mean age 14.5, SD 1.8), 33 age-matched female JNSOs, and 33 age-matched male JSOs. We used the Massachusetts Youth Screening Instrument-version 2 to examine MHP. Although both internalizing and externalizing MHP were not uncommon in female JSOs, they reported fewer problems than female JNSOs. No differences were found between female and male JSOs. With regard to their mental health profile, female JSOs resemble male JSOs more than female JNSOs. These results should be taken into account in the assessment and treatment of this group. However, more research is needed.

Exploring the interrelatedness of risk factors for child maltreatment: A network approach.

BACKGROUND: Theories on the etiology of child maltreatment generally focus on the interaction between multiple risk and protective factors. Moreover, the quadratic model of cumulative risk describes a threshold at which the risk of child maltreatment increases exponentially, suggesting a synergistic effect between risk factors. OBJECTIVE: This study explored the interrelatedness of risk factors for child maltreatment. PARTICIPANTS AND SETTING: The sample consisted of risk assessments performed for both high-risk families (n = 2,399; child protection services) and lower risk families (n = 1,904; community outreach services). METHODS: Network analyses were performed on parental risk factors. Three networks were constructed: a cross-sample network, a high-risk network, and a lower risk network. The relations between risk factors were examined, as well as the centrality of each risk factor in these networks. Additionally, the networks of the two samples were compared. RESULTS: The networks revealed that risk factors for child maltreatment were highly interrelated, which is consistent with Belsky's multi-dimensional perspective on child maltreatment. As expected, risk factors were generally stronger related to each other in the high-risk sample than in the lower risk sample. Centrality analyses showed that the following risk factors play an important role in the development of child maltreatment: "Caregiver was maltreated as a child", "History of domestic violence", and "Caregiver is emotionally absent". CONCLUSIONS: We conclude that studying the interrelatedness of risk factors contributes to knowledge on the etiology of child maltreatment and the improvement of both risk assessment procedures and interventions for child maltreatment.

Study protocol: randomized controlled trial of manualized components in home visitation to reduce mothers' risk for child maltreatment.

BACKGROUND: This study tests whether home visitation to prevent child maltreatment can be improved by adding manualized program components, targeting four key risk factors for child maltreatment: low parental self-efficacy, high levels of perceived stress, parental anger, and post-traumatic stress symptoms. Home visitation is widely implemented, but effects on child maltreatment risk tend to be modest at best. Home visitation tends to be rather flexible (i.e., professionals decide how to support each family). We will test whether adding manualized program components increases program effectiveness, by ensuring that key risk factors are addressed, while maintaining flexibility. In addition, we will test whether any component effects on reduced child maltreatment risk can be explained (i.e., is mediated) by ameliorated risk factors. Lastly, we will test whether the components are more effective for some mothers (e.g., those at highest child maltreatment risk) than for others. METHODS: We will conduct a randomized controlled trial among 398 mothers enrolled in a Dutch home visiting program targeting families at risk for child maltreatment. Mothers in the experimental group will receive the manualized components in two consecutive home visits, while mothers in the control group will receive regular home visits (care as usual). Mothers will fill out questionnaires at four time points: before and after each of the two home visits. Outcome variables include the four targeted risk factors parental self-efficacy, perceived stress, parental anger, and (recognition of) post-traumatic stress symptoms, as well as parenting practices (e.g., rejection and affection), and risk for child maltreatment. DISCUSSION: This study aims to determine whether adding manualized program components to a flexible home visiting program increases program effectiveness on risk for child maltreatment. In addition, our test of whether the effects of the components on risk for child maltreatment is explained (i.e., mediated) by amelioration of the targeted risk factors, may contribute to our understanding of the role of these risk factors in child maltreatment. Our tests of which mothers benefit most from adding the components may help move the field towards evidence-based personalized family support. TRIAL REGISTRATION: This trial has been retrospectively registered in the Netherlands Trial Register (NL8005).

Risk Factors for School Absenteeism and Dropout: A Meta-Analytic Review.

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.

The Effectiveness of Parent Training Programs for Child Maltreatment and Their Components: A Meta-Analysis.

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.

Risk factors for child sexual abuse victimization: A meta-analytic review.

Experiencing child sexual abuse (CSA) is a major public health problem with serious consequences for CSA victims. For effective assessment and (preventive) intervention, knowledge on risk factors and their effects is crucial. Here, the aim was to synthesize research on associations between (putative) risk factors and CSA victimization. In total, 765 (putative) risk factors were extracted from 72 studies, which were classified into 35 risk domains. A series of three-level meta-analyses produced a significant mean effect for 23 of the 35 risk domains ranging from r = .101 to r = .360. The strongest effects were found for prior victimization of the child and/or its family members, such as prior CSA victimization of the child and/or siblings (r = .360), prior victimization of the child other than child abuse (r = .340), prior or concurrent forms of child abuse in the child's home environment (r = .267), and a parental history of child abuse victimization (r = .265). Other identified risks were related to parental problems (e.g., intimate partner violence, r = .188), parenting problems (e.g., low quality of parent-child relation, r = .292), a non-nuclear family structure (e.g., having a stepfather, r = .118), family problems (e.g., social isolation, r = .191), child problems (e.g., having a mental/physical chronic condition, r = .193), and other child characteristics (e.g., being female, r = .290). Moderator analyses suggested that contact CSA victimization may be better predicted than noncontact CSA victimization. It was concluded that an ecological perspective on preventing CSA victimization is necessary. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

The intergenerational transmission of child maltreatment: A three-level meta-analysis.

A parental history of experiencing child maltreatment is an important risk factor in several etiological theories of child maltreatment. In the past, two reviews have been conducted on the available evidence for intergenerational continuity in child maltreatment, but were only qualitative in nature. Therefore, the present review aimed to provide a quantitative summary of the current knowledge on intergenerational transmission of child maltreatment. In our 3-level random-effects meta-analysis, we included 84 studies reporting on 285 effect sizes and found a medium summary effect of r = 0.289; 95% CI [0.257, 0.337], with significant variation in effect sizes within (level 2) and between (level 3) studies. This implies that in families of parents who experienced maltreatment in their own childhood, the odds of child maltreatment are almost three times the odds of child maltreatment in families of parents without a history of experiencing child maltreatment (OR = 2.990). However, as indications for bias were found, caution is warranted in interpreting this effect. Moderator analyses revealed that the effect of intergenerational transmission was the smallest in children who experienced physical abuse. Further, study quality was negatively associated with effect size magnitude. We highlight the need for an improvement in quality of primary research, and discuss implications of our findings for clinical practice.

Risk factors for child neglect: A meta-analytic review.

Knowledge of risk factors and their effects is vital for successfully preventing and reducing child neglect. This study provides a meta-analytic update of research on risk factors for child neglect. A total of 315 effect sizes were extracted from 36 primary studies and classified into 24 risk domains. Effects of 15 risk domains were significant and ranged from small (r = .110) to large (r = .372) in magnitude. Most risks were found at the parental level, such as having a history of antisocial behavior/criminal offending (r = .372); having a history of mental/psychiatric problems (r = . 259); having mental/physical problems (r = .207); and experiences of abuse in own childhood (r = .182). The effect of mother-related risk factors was not significantly different from the effect of father-related risk factors. It is concluded that child neglect is determined by multiple risk domains and that especially parent-related risk factors are important in preventing and reducing child neglect. Implications of the results for clinical practice are discussed.

Identifying Effective Components of Child Maltreatment Interventions: A Meta-analysis.

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.