Peter H. van der Laan

The Relationship Between Parenting and Delinquency: A Meta-analysis

This meta-analysis of 161 published and unpublished manuscripts was conducted to determine whether the association between parenting and delinquency exists and what the magnitude of this linkage is. The strongest links were found for parental monitoring, psychological control, and negative aspects of support such as rejection and hostility, accounting for up to 11% of the variance in delinquency. Several effect sizes were moderated by parent and child gender, child age, informant on parenting, and delinquency type, indicating that some parenting behaviors are more important for particular contexts or subsamples. Although both dimensions of warmth and support seem to be important, surprisingly very few studies focused on parenting styles. Furthermore, fewer than 20% of the studies focused on parenting behavior of fathers, despite the fact that the effect of poor support by fathers was larger than poor maternal support, particularly for sons. Implications for theory and parenting are discussed.

Trajectories of Delinquency and Parenting Styles

We investigated trajectories of adolescent delinquent development using data from the Pittsburgh Youth Study and examined the extent to which these different trajectories are differentially predicted by childhood parenting styles. Based on self-reported and official delinquency seriousness, covering ages 10–19, we identified five distinct delinquency trajectories differing in both level and change in seriousness over time: a nondelinquent, minor persisting, moderate desisting, serious persisting, and serious desisting trajectory. More serious delinquents tended to more frequently engage in delinquency, and to report a higher proportion of theft. Proportionally, serious persistent delinquents were the most violent of all trajectory groups. Using cluster analysis we identified three parenting styles: authoritative, authoritarian (moderately supportive), and neglectful (punishing). Controlling for demographic characteristics and childhood delinquency, neglectful parenting was more frequent in moderate desisters, serious persisters, and serious desisters, suggesting that parenting styles differentiate non- or minor delinquents from more serious delinquents.

A Meta-analysis of Attachment to Parents and Delinquency

To investigate the link between attachment to parents and delinquency, and the potential moderating effects of age and sex, 74 published and unpublished manuscripts (N = 55,537 participants) were subjected to a multilevel meta-analysis. A mean small to moderate effect size was found (r = 0.18). Poor attachment to parents was significantly linked to delinquency in boys and girls. Stronger effect sizes were found for attachment to mothers than attachment to fathers. In addition, stronger effect sizes were found if the child and the parent had the same sex compared to cross-sex pairs of children and parents. Age of the participants moderated the link between attachment and delinquency: larger effect sizes were found in younger than in older participants. It can be concluded that attachment is associated with juvenile delinquency. Attachment could therefore be a target for intervention to reduce or prevent future delinquent behavior in juveniles.

The effectiveness of Multisystemic Therapy (MST): A meta-analysis

Multisystemic Therapy (MST) is a well-established intervention for juvenile delinquents and/or adolescents showing social, emotional and behavioral problems. A multilevel meta-analysis of k=22 studies, containing 332 effect sizes, consisting of N=4066 juveniles, was conducted to examine the effectiveness of MST. Small but significant treatment effects were found on delinquency (primary outcome) and psychopathology, substance use, family factors, out-of-home placement and peer factors, whereas no significant treatment effect was found for skills and cognitions. Moderator analyses showed that study characteristics (country where the research was conducted, efficacy versus effectiveness, and study quality), treatment characteristics (single versus multiple control treatments and duration of MST treatment), sample characteristics (target population, age, gender and ethnicity) and outcome characteristics (non-specific versus violent/non-violent offending, correction for pretreatment differences, and informant type) moderated the effectiveness of MST. MST seems most effective with juveniles under the age of 15, with severe starting conditions. Furthermore, the effectiveness of MST may be improved when treatment for older juveniles is focused more on peer relationships and risks and protective factors in the school domain.

Measuring Group Climate in Prison

The present study examines the construct validity and reliability of the Prison Group Climate Instrument (PGCI) in a sample of 77 adolescents placed in a Dutch youth prison and 49 adult prisoners living in a Dutch psychiatric prison with a therapeutic living group structure. Confirmatory factor analysis of a four-factor model—with “repression,” “support,” “growth,” and “group atmosphere” as first-order factors—and “overall group climate” as a second-order factor shows an adequate fit to the data, indicating construct validity of the PGCI. Cronbach’s alpha reliability coefficients are good for all factors. The PGCI is a parsimonious instrument, enabling future research on group climate in youth prisons and secure forensic psychiatric institutions. The instrument can be used as an assessment tool for judicial interventions that use group climate to improve outcomes in delinquent youth and adult delinquents receiving treatment for psychiatric problems.

Moral Development and Recidivism: A Meta-Analysis

A meta-analysis of 19 studies (N = 15,992 offenders) showed a significant inverse relation between more mature moral development and recidivism. Moderator analyses revealed a larger effect size for moral cognition (r = .20) than for moral emotion (r = .11). Effect sizes for production measures (r = .57) were much larger than for recognition measures (r = .16) and unstructured (clinical) judgment (r = .10). Larger effect sizes were found for female delinquents (r = .32) than for male delinquents (r = .21). Only small differences in effect sizes were found between juvenile delinquents (r = .10) and adult delinquents (r = .16). Finally, self-report measures of recidivism revealed much larger effect sizes (r = .32) than official reports of recidivism (r = .09). The discussion focuses on the theoretical and practical meaning of the magnitude of the effect size for the relation between moral development and recidivism.

Changes in Risk Factors during Adolescence Implications for Risk Assessment

This study examined to what extent the significance of both static and dynamic risk factors for recidivism changes in the course of adolescence. For this purpose, file and interview data of 1,396 juveniles charged with a criminal offense were analyzed. This study showed that the impact of almost all dynamic risk factors decreased as juveniles grew older. As a result, the predictive power of risk assessment models also decreased. From age 14, dynamic risk factors did not contribute significantly to the prediction of recidivism over static risk factors. Another consequence of the declining importance of dynamic risk factors is that the potential effect of an intervention aimed at these factors will also decrease as adolescents grow older, which indicates the importance of early intervention.

Long-Term Effects of Parenting and Family Characteristics on Delinquency of Male Young Adults:

Drawing from the criminology literature and family studies, we investigated the long-term effects of established family risk factors and parenting styles on male young adult delinquency. We used data sets from two longitudinal studies, the Pittsburgh Youth Study (N=474) and the Child-Rearing and Family in the Netherlands Study (N=128), each with assessment periods covering at least 10 years. The lack of orderly and structured activities within the family during adolescence was a strong predictor of delinquency in young adulthood, once prior aggression and demographic variables were considered. No evidence was found for a relationship between authoritarian and authoritative parenting styles and later delinquency. Furthermore, previously identified family factors such as socioeconomic status, supervision, punishment and attachment were not related to delinquent behaviour in young adulthood.

Procedural Justice, Anger, and Prisoners’ Misconduct A Longitudinal Study

Procedural justice literature suggests that when criminal justice authorities treat people with fairness and respect, people will be more likely to comply with authority’s decisions and rules. Up until now, prior research has largely neglected the correctional context and often used cross-sectional designs. The aims of this study were to examine (a) the longitudinal relationship between prisoners’ procedural justice perceptions and their misconduct, and (b) the mediating role of anger in this relationship. Using two waves of survey data (T1 and T2) and disciplinary reports from a sample of 806 Dutch prisoners, structural equation models were employed to investigate associations. The results show that prisoners who felt treated in a procedurally just manner in the correctional facility at T1 were less likely to report engaging in misconduct at T2. They were also less likely to have received a disciplinary report at T2. Anger fully mediated the effect of procedural justice on prisoners’ misconduct.

Risk Assessment of Girls: Are There Any Sex Differences in Risk Factors for Re-offending and in Risk Profiles?

The aims of this study were (a) to investigate sex differences in risk factors for re-offending and (b) to provide a risk assessment model for girls. The data of 1,396 adolescents who committed a criminal offense were examined. Both generic and sex-specific risk factors for re-offending were found. The girl-specific risk factors are located mainly in the family domain. These girl-specific risk factors turn out to be by far the most important predictors for re-offending for girls. The risk assessment model divides girls into four different risk groups: a low risk group (containing 65% of the girls) and three high risk groups (girls with delinquent parents, victims of abuse, and repeat offenders), each showing a specific set of risk factors, which suggests the need for specific interventions.