J. Mark Eddy

Description and immediate impacts of a preventive intervention for conduct problems

A population-based randomized intervention trial for the prevention of conduct problems (i.e., oppositional defiant disorder and conduct disorder) is described. The LIFT (Linking the Interests of Families and Teachers) intervention was designed for all first- and fifth-grade elementary school boys and girls and their families living in at-risk neighborhoods characterized by high rates of juvenile delinquency. The 10-week intervention strategy was carefully targeted at proximal and malleable antecedents in three social domains that were identified by a developmental model of conduct problems. From 12 elementary schools, 671 first and fifth graders and their families participated either in the theory-based universal preventive intervention or in a control condition. The intervention consisted of parent training, a classroom-based social skills program, a playground behavioral program, and systematic communication between teachers and parents. A multiple measure assessment strategy was used to evaluate participant satisfaction and participation, fidelity of implementation, and the immediate impacts of the program on targeted antecedents.

Promoting Academic Success Among Latino Youths

This article describes results from the Oregon Latino Youth Survey, which was designed to identify factors that promote or hinder academic success for Latino middle school and high school youngsters. The study samples included a total of 564 Latino and non-Latino students and parents. Analyses showed that Latino students reported a high frequency of discriminatory experiences and institutional barriers at school, and Latino students and their parents were more likely to experience institutional barriers compared to non-Latinos. Furthermore, Latino students and parents reported that they and/or their youngsters were more likely to drop out of school compared to non-Latinos. Path models showed that lower acculturation and more institutional barriers were related to less academic success for Latino students. More parent academic encouragement and staff extracurricular encouragement were associated with better academic outcomes for Latino students. Finally, family socioeconomic disadvantage had an indirect effect on Latino youngster academic success, through effects on parent monitoring and school involvement.

Effects of Culturally Adapted Parent Management Training on Latino Youth Behavioral Health Outcomes.

A randomized experimental test of the implementation feasibility and the efficacy of a culturally adapted Parent Management Training intervention was conducted with a sample of 73 Spanish-speaking Latino parents with middle-school-aged youth at risk for problem behaviors. Intervention feasibility was evaluated through weekly parent satisfaction ratings, intervention participation and attendance, and overall program satisfaction. Intervention effects were evaluated by examining changes in parenting and youth adjustment for the intervention and control groups between baseline and intervention termination approximately 5 months later. Findings provided strong evidence for the feasibility of delivering the intervention in a larger community context. The intervention produced benefits in both parenting outcomes (i.e., general parenting, skill encouragement, overall effective parenting) and youth outcomes (i.e., aggression, externalizing, likelihood of smoking and use of alcohol, marijuana, and other drugs). Differential effects of the intervention were based on youth nativity status.

The Prevention of Violent Behavior by Chronic and Serious Male Juvenile Offenders: A 2-Year Follow-up of a Randomized Clinical Trial.

Over the past several decades, an increasing number of youth have been incarcerated for violent offenses. Existing interventions for serious offenders target the prevention of subsequent delinquent behavior in general, rather than the prevention of violent behavior in particular. Within the context of a randomized clinical trial of 79 adolescent males involved in the juvenile justice system, we examine the ability of multidimensional treatment foster care (MTFC) to prevent subsequent violent offending relative to services-as-usual group home care (GC). Data on offending were collected every 6 months for a 2-year period following entry into the study. The method of generalized estimating equations was used to analyze the data. Results indicate that MTFC youth were significantly less likely to commit violent offenses than youth placed in services-as-usual group care. The group effect held even after control variables, including age at placement, age at first arrest, official and self-reported prior offenses, and time since baseline,were introduced into the model. Twenty-four percent of GC youth had two or more criminal referrals for violent offenses in the 2 years following baseline versus only 5% of MTFC youth. The rates of self-reported violent offending for MTFC youth were in the normative range following baseline, whereas rates for GC youth were 4 to 9 times higher. MTFC youth were also significantly less likely to report incidents of common violence, such as hitting.

Coercive family processes: A replication and extension of Patterson’s coercion model

Patterson hypothesized that aggressive behavior develops in families when parents use coercion as the primary mode for controlling their children. The model has been tested with boys and older children. In this paper, through confirmatory factor analysis, we examine how well the coercion model generalizes to 5-year-old children (boys and girls). Our results suggest that the model fits the data similarly for boys and girls. Few sex differences in child antisocial behavior were found on observed or parent-rated measures, nor were differences found in observed parent aversive responses to child behavior. This implies that similar coercion processes apply to both boys and girls. Aggr. Behav. 27:14–25, 2001.

Outcomes during middle school for an elementary school-based preventive intervention for conduct problems: Follow-up results from a randomized trial

Middle school outcomes for a population-based, randomized preventive intervention trial for conduct problems are reported. Students ( n = 361), and their parents, from six elementary schools participated in the trial. Randomization into control and preventive intervention conditions occurred at the school level. Schools were located in neighborhoods characterized by high rates of juvenile delinquency. The Linking the Interest of Families and Teachers (LIFT) multimodal preventive intervention, which included behavioral parent management training, child social and problem-solving skills training, a recess behavior management program, and a classroom dedicated phone line and answering machine, was offered to students and parents from all fifth and combined fourth-fifth classrooms within preventive intervention schools. Survival analyses were conducted using logistic regression for substance use outcomes and Cox regression for police arrest. The onset of polic arrest and patterned alcohol use during the middle school years was less likely for participants in the preventive intervention condition than for participants in the control condition, but no differences were found in terms of onset of tobacco use or marijuana use.

Parental Incarceration During Childhood, Family Context, and Youth Problem Behavior Across Adolescence

Over the past several decades, the number of youth with parents in prison in the United States has increased substantially. Findings thus far indicate that they are a vulnerable group of children. Using prospective longitudinal data gathered as part of the population-based Linking the Interests of Families and Teachers (LIFT) randomized controlled trial, adolescents who had an incarcerated parent during childhood are compared to those who did not across four key domains: family social advantage, parent health, the parenting strategies of families, and youth externalizing behavior and serious delinquency. Past parental incarceration was associated with lower family income, parental education, parental socioeconomic status, and parental health, and with higher levels of parental depression, inappropriate and inconsistent discipline, youth problem behaviors and serious delinquency. The effect sizes for significant associations were small to moderate.

Evaluating Mediators of the Impact of the Linking the Interests of Families and Teachers (LIFT) Multimodal Preventive Intervention on Substance Use Initiation and Growth Across Adolescence

Substance use outcomes were examined for 351 youth participating in a randomized controlled trial designed to assess the efficacy of a school-based multimodal universal preventive intervention, Linking the Interests of Families and Teachers (LIFT). Frequency of any use of tobacco, alcohol, and other drugs was assessed via self-report from grades 5 through 12. Latent variable growth models specified average level, linear growth and accelerated growth. The LIFT intervention had a significant effect on reducing the rate of growth in use of tobacco and illicit drugs, particularly for girls, and had an overall impact on average levels of use of tobacco, alcohol, and illicit drugs. Average tobacco use reductions were mediated by increases in family problem solving. The intervention had significant indirect effects on growth in substance use through intervention effects on reduced playground aggression and increased family problem solving. The intervention was also associated with roughly a 10% reduced risk in initiating tobacco and alcohol use. Implications for future studies of multimodal preventive interventions are discussed.

Recruitment and Retention of Latino Immigrant Families in Prevention Research

The development and testing of culturally competent interventions relies on the recruitment and retention of ethnic minority populations. Minority immigrants are a population of keen interest given their widespread growth, needs, and contributions to communities in which they settle, and particularly recent immigrants from Mexico and Central and South American countries. However, recruitment and retention strategies for entirely immigrant samples are rarely discussed in the literature. The current article describes lessons learned from two family-focused longitudinal prevention research studies of Latino immigrants in Oregon—the Adolescent Latino Acculturation Study (ALAS) and the Latino Youth and Family Empowerment Project-II (LYFE-II). Social, legal, economic, and political contexts are considered that shape Latino immigrants’ experiences in their home countries as well as in the United States. The implications of these contexts for effective recruitment and retention strategies are discussed.

Preliminary Support for Multidimensional Treatment Foster Care in Reducing Substance Use in Delinquent Boys.

Although effective outpatient treatments have been identified for the well-documented negative outcomes associated with delinquency and substance use, effective treatments for youths in out-of-home care are rare. In this study, 12- and 18-month substance use outcomes were examined for a sample of 79 boys who were randomly assigned to Multidimensional Treatment Foster Care (experimental condition) or to group care (comparison condition). The boys in the experimental condition had lower levels of self-reported drug use at 12 months, and lower levels of tobacco, marijuana, and other drug use at 18 months. Limitations and future directions are discussed.