A systematic review and evaluation of response redirection as a treatment for challenging behavior in individuals with developmental disabilities

Response redirection is widely used in clinical practice as a treatment for repetitive behavior or stereotypy in persons with developmental disabilities. However, to date the procedure has received comparatively little empirical evaluation. The current review sought to examine the literature describing the efficacy of response redirection alone, response interruption and redirection (RIRD), and multi-element treatment packages incorporating response redirection, as interventions for challenging behavior in individuals with developmental disabilities. Additionally, the status of response redirection, and RIRD, as evidence-based practice was evaluated in accordance with Reichow's (2011) recently developed criteria. Results indicated that interventions involving response redirection or RIRD typically led to large decreases in challenging behavior but did not result in behavioral suppression. On the basis of the current literature and in accordance with Reichow's criteria, interventions incorporating response redirection do not yet constitute evidence-based practice. The implications of these findings, for both research and practice, are discussed.

General and substance-specific predictors of young adult nicotine dependence, alcohol use disorder, and problem behavior: replication in two samples

BACKGROUND

This paper presents two replications of a heuristic model for measuring environment in studies of gene-environment interplay in the etiology of young adult problem behaviors.

METHODS

Data were drawn from two longitudinal, U.S. studies of the etiology of substance use and related behaviors: the Raising Healthy Children study (RHC; N=1040, 47% female) and the Minnesota Twin Family Study (MTFS; N=1512, 50% female). RHC included a Pacific Northwest, school-based, community sample. MTFS included twins identified from state birth records in Minnesota. Both studies included commensurate measures of general family environment and family substance-specific environments in adolescence (RHC ages 10-18; MTFS age 18), as well as young adult nicotine dependence, alcohol and illicit drug use disorders, HIV sexual risk behavior, and antisocial behavior (RHC ages 24, 25; MTFS age 25).

RESULTS

Results from the two samples were highly consistent and largely supported the heuristic model proposed by Bailey et al. (2011). Adolescent general family environment, family smoking environment, and family drinking environment predicted shared variance in problem behaviors in young adulthood. Family smoking environment predicted unique variance in young adult nicotine dependence. Family drinking environment did not appear to predict unique variance in young adult alcohol use disorder.

CONCLUSIONS

Organizing environmental predictors and outcomes into general and substance-specific measures provides a useful way forward in modeling complex environments and phenotypes. Results suggest that programs aimed at preventing young adult problem behaviors should target general family environment and family smoking and drinking environments in adolescence.

Acceptance and Commitment Therapy for Individuals with Disabilities: A Behavior Analytic Strategy for Addressing Private Events in Challenging Behavior

Applied behavior analysts work with many populations including individuals with developmental and intellectual disabilities. Although behavior analysts have a variety of empirically supported treatments to implement when working with individuals with disabilities, sometimes, other variables may adversely impact treatment effectiveness. The degree to which problematic thoughts and feelings (private events) influence behavior may be a variable that contributes to treatment efficacy. Traditional behavior analytic services are not always equipped to successfully address the private events influencing client behavior. In such cases, it may be beneficial for behavior analysts to consider additional philosophically aligned treatments for private events. One such treatment, acceptance and commitment therapy, may be a useful tool for behavior analysts to incorporate into their toolbox in order to help clients. The purpose of this paper is to introduce behavior analysts to a potential solution to the problem of effectively addressing private events in behavior analytic services. We then propose a model for thinking about private events in relation to clients with disabilities and present a guide for taking steps to address private events in the clinical setting. We conclude this paper with a call for research and present a possible research agenda for behavior analysts.

Study protocol: individualized music for people with dementia - improvement of quality of life and social participation for people with dementia in institutional care

BACKGROUND

People with dementia (PwD) experience a range of negative behavioral and psychological symptoms which can lower their quality of life. Because of the increasing prevalence of dementia, interventions that maintain and enhance the quality of life for PwD are needed. Listening to individualized music constitutes a promising non-pharmacological intervention for PwD. However, despite some preliminary results, evidence regarding the effectiveness of such interventions has been mixed and previous studies have shown a number of methodological limitations. In a randomized controlled trial, we address the limitations of previous research and assess the feasibility, efficacy, and acceptability of an individualized music intervention for PwD living in a nursing home.

METHODS

Residents with dementia from four to five nursing homes in Germany will be randomly assigned to either an intervention or control group. The intervention group will listen to personally-relevant music for 20 min every other day for six weeks. Nursing staff will assess participants' quality of life and problem behavior at the six-week baseline, pretest, posttest, and at the six-week follow-up. Additionally, the participants' behavior will be observed during the intervention period by project staff. The implementation, acceptance, and applicability of the intervention will also be evaluated.

DISCUSSION

The study results will show whether an individualized music intervention can improve the quality of life for PwD living in a nursing home. Additionally, it will provide valuable insight into the acceptability and implementation of an individualized music intervention in the institutional care setting. If the individualized music intervention proves to be effective and widely applicable, it could be implemented on a large scale in institutional care as an easy-to-administer intervention.

TRIAL REGISTRATION

German Clinical Trials Register DRKS00013793 ; ISRCTN registry, ISRCTN59052178 , date applied 27 February 2018, date assigned 4 April 2018, retrospectively registered.

Using ABC narrative recording to identify the function of problem behavior: a pilot study

Many professionals report using ABC narrative recording to identify the function of problem behavior in children with developmental disabilities, but research has not established whether their analyses yield valid results. Thus, the purpose of this study was to examine whether the function identified by expert reviewers using ABC narrative recordings would match the one identified by a functional analysis (FA) and the Questions About Behavioral Function (QABF) scale in four children with developmental disabilities. The functions identified by all twelve experts using the ABC narrative recordings matched at least one of the functions identified by the FA for three of four participants. The experts' analyses also agreed with the informant-based assessment at a statistically significant level for two of three participants with a conclusive QABF. Altogether, the results suggest that ABC narrative recording may be useful to generate hypotheses to identify the function of problem behavior, but that more research is needed before recommending its use as a standalone functional behavior assessment.

The Big Four: Functional Assessment Research Informs Preventative Behavior Analysis

Current practice guidelines suggest that the assessment and treatment of challenging behavior should consist of conducting a functional behavior assessment following the onset of problem behavior. This assessment process can include indirect and direct assessment, as well as manipulation of variables to determine function. The purpose of this article is to outline a proposal that would add prevention practices to early intervention guidelines for problem behavior. Based on decades of research, the suggestion is to proactively teach children at risk for problem behavior to navigate four of the most common conditions that have been demonstrated to occasion problem behavior. Prevention is made a possibility because a large body of research examining the conditions under which challenging behavior occurs has been reliably replicated. Preventative approaches are an emerging phenomenon and reflect a progression in the practice of behavior analysis. Prevention may lead to acquisition of prosocial behavior before problems arise, to expedited and enhanced treatment, to increased access to favorable learning environments, and, we hope, to improvement in the quality of life for many children at risk for the development of problem behavior.

Systematic Review of Problem Behavior Interventions: Outcomes, Demographics, and Settings

Interventions designed to decrease problem behavior for students with ASD are critical and may be differentially important for students from minority groups as those students tend to be assigned more negative outcomes related to problem behavior (e.g., suspensions). School-based interventions intended to decrease problem behavior for individuals with ASD were reviewed; 46 articles including 84 single case designs and 87 participants were analyzed regarding participant demographics, settings and implementers, intervention components, and study characteristics. We assessed outcomes for 55 demonstration designs with adequate rigor. Most research was conducted with students in segregated settings and, although race and ethnicity were rarely reported, proportions were different from other reviews in that children from some minority groups were overrepresented.

Measuring positive and negative aspects of youth behavior: Development and validation of the Adolescent Functioning Scale

This paper outlines the development and validation of the Adolescent Functioning Scale (AFS) in an Australian sample of parents of young people aged 11-18 years (N = 278). The AFS, a parent self-report measure, was designed to assess problem behavior and positive development in adolescents. Principal components analysis produced a 33-item measure comprising four subscales: Positive Development, Oppositional Defiant Behavior, Antisocial Behavior and Emotional Difficulties. Convergent validity was established via correlations between the AFS and established measures of adolescent functioning and parenting, and discriminant validity was shown through no association between the AFS and a measure of technology use. Internal consistency for the subscales was high (H = .82-.92 for different age groups), as was test-retest reliability (r = .77-.86). The study indicated that the AFS is a potentially valuable tool for assessing levels of problem behaviors and positive development in adolescents.

Effects of Household Income Change on Children's Problem Behavior: Findings From a Longitudinal Study

PURPOSE

This study aimed to examine the effect of changes in equivalized disposable household income (EHDI) on children's problem behavior.

METHODS

Data were collected from the Korean Welfare Panel Study (2006, 2009, 2012). A total of 1,005 school-aged children were included in the analysis. Children's problem behavior was measured using the Korean version of the Child Behavior Checklist. Using the generalized linear mixed model for repeated measures, we investigated the effect of actual household income changes on children's problem behavior, based on the family's EHDI.

RESULTS

Children who experienced high EHDI decrement exhibited a significant increase in problem behavior compared with those who did not experience sizable EHDI change (high decrement: β = .21, standard error = .09, p = .016). Furthermore, problem behavior was higher in girls who experienced a decrement in EHDI compared with boys.

CONCLUSIONS

These findings suggest that changes in family's economic status might negatively affect the probability of children's problem behavior when there is a large decrease in EHDI.

The Temporal Dynamics of Neighborhood Disadvantage in Childhood and Subsequent Problem Behavior in Adolescence

Research on neighborhood effects has increasingly focused on how long children have lived in a deprived neighborhood during childhood (duration), but has typically ignored when in childhood the exposure occurred (timing) and whether neighborhood circumstances were improving or deteriorating (sequencing). In this article, the authors applied sequence analysis to simultaneously capture children’s duration, timing, and sequencing of exposure to neighborhood (dis)advantage in childhood. Logistic regression analysis was subsequently used to test how different patterns of exposure are related to teenage parenthood, school dropout, and delinquent behavior. Using register data from the Netherlands, an entire cohort was followed from birth in 1995 up until age 19 in 2014 (N = 168,645, 48.8% females, 83.2% native Dutch). Compared to children who had lived in a deprived neighborhood throughout childhood, children who were exposed to neighborhood deprivation only during adolescence were found to be equally likely to become a teenage parent and were even more likely to drop out of school. Unexpectedly, children who had lived in an affluent neighborhood throughout childhood were most likely to engage in delinquent behavior. Possible explanations and implications are discussed.

State and Trait Anxiety of Adolescents with Autism Spectrum Disorders

OBJECTIVE

This study examined how state and trait anxiety of adolescents with autism spectrum disorders (ASD) are associated with their demographic characteristics, repetitive and restricted behaviors (RRBs), and internalizing and externalizing problem behaviors.

METHODS

A total of 96 participants with ASD (mean age=14.30 years; 91 males) completed a battery of tests including the State/Trait Anxiety Inventory (STAI), the Autism Diagnostic Interview-Revised, the Social Responsiveness Scale (SRS), and a cognitive test measuring intelligence quotient (IQ). Participants' parents completed the Child Behavior Checklist (CBCL). Pearson's correlations among age, IQ, two subscales of the STAI (i.e., STAIS and STAIT, measuring self-reported state and trait anxiety, respectively), and the Anxiety subscale of CBCL (i.e., CBCL-Anxiety, measuring parent-reported trait anxiety) were computed. Subsequently, Pearson's correlations were computed among the three anxiety measures, RRBs, and problem behaviors, while controlling for participants' age and IQ.

RESULTS

The STAIS and CBCL-Anxiety were both significantly correlated with higher age, sensory sensitivity, depressive symptoms, somatic complaints, and aggressive behaviors. All three anxiety variables were significantly and positively correlated with total SRS RRB scores. Additionally, the STAIS and STAIT were significantly associated with more severe Compulsion/Adherence behaviors, and the CBCL-Anxiety was also significantly associated with more severe Rule-breaking Behaviors.

CONCLUSION

Self-reported state anxiety showed association patterns similar to those of parent-reported trait anxiety. Future studies investigating the precise operationalization of different anxiety instruments are needed to accurately measure the anxiety of adolescents with ASD.

A Cross-National Comparison of the Development of Adolescent Problem Behavior: a 1-Year Longitudinal Study in India, the Netherlands, the USA, and Australia

The world youth population is the largest ever and the levels of problem behavior will influence future global health. Recognition of these issues raises questions as to whether adolescent development knowledge can be internationally applied. To date, most research examining adolescent problem behavior has been completed in the United States (USA) and there has been neglected analysis of health inequalities. The aim of the present study was to compare the structure and predictors of problem behavior in representative samples from the USA, Australia, India, and the Netherlands. Two timepoints of longitudinal data were analyzed from the International Youth Development Study that originally recruited state-representative student cohorts in 2002 in Washington State, USA (analytic sample N = 1942) and Victoria, Australia (N = 1957). Similar aged samples were recruited in Mumbai, India, in 2010 (N = 3.923) and the Netherlands in 2008 (N = 682). Surveys were matched and follow-up occurred over 1-year (average baseline ages 12 to 13). CFA identified a latent problem behavior construct comprised of substance use and antisocial behavior indicators. There were cross-national differences in the indicators for this construct. Factor loadings and items were similar between Australia and the USA; however, different items loaded on the construct for the Indian and Netherlands sample. SEM identified that problem behavior at time 2 was predicted by time 1 behavior, with cross-national differences evident. Low parent education was predictive in the USA and India. The number of risk factors present was predictive of problem behavior in all four nations. The findings suggest that evaluated preventative strategies to reduce adolescent problem behavior may have international applications. The analysis of cross-nationally matched longitudinal data appears feasible for identifying prevalence and predictor differences that may signify policy and cultural contexts, to be considered in adapting prevention programs.

Persons with multiple disabilities increase adaptive responding and control inadequate posture or behavior through programs based on microswitch-cluster technology

Study I used typical microswitch-cluster programs to promote adaptive responding (i.e., object manipulation) and reduce inappropriate head or head-trunk forward leaning with a boy and a woman with multiple disabilities. Optic, tilt, and vibration microswitches were used to record their adaptive responses while optic and tilt microswitches monitored their posture. The study included an ABB(1)AB(1) sequence, in which A represented baseline phases, B represented an intervention phase in which adaptive responses were always followed by preferred stimulation, and B(1) represented intervention phases in which the adaptive responses led to preferred stimulation only if the inappropriate posture was absent. Study II assessed a non-typical, new microswitch-cluster program to promote two adaptive responses (i.e., mouth cleaning to reduce drooling effects and object assembling) with a man with multiple disabilities. Initially, the man received preferred stimulation for each cleaning response. Then, he received stimulation only if mouth cleaning was preceded by object assembling. The results of Study I showed that both participants had large increases in adaptive responding and a drastic reduction in inappropriate posture during the B(1) phases and a 2-week post-intervention check. The results of Study II showed that the man learned to control drooling effects through mouth cleaning and used object assembling to extend constructive engagement and interspace cleaning responses functionally. The practical implications of the findings are discussed.

Co-occurring behavioral difficulties in children with severe feeding problems: A descriptive study

BACKGROUND

Recent literature highlights the association between behavioral difficulties and the presence of feeding problems in children with an Autism Spectrum Disorder (ASD) relative to children with ASD without feeding problems. However, it is not clear to what extent behavior problems (outside of the meal setting) occur in children with feeding problems without comorbid ASD.

AIMS

The purpose is to describe co-occurring behavioral difficulties of a sample of children with severe food refusal/selectivity and examine potential predictors of behavioral difficulties outside of the meal context.

METHOD AND PROCEDURES

The medical charts of fifty-four patients were reviewed and data were collected on the frequency of caregiver coaching and/or behavioral intervention outside of the meal context. Age, presence of developmental delay/autism, and type of feeding problem were examined as potential predictors of behavioral support.

OUTCOME AND RESULTS

Approximately half of the sample received coaching or individualized intervention. The percentage of caregivers who received individualize coaching were similar across groups. Younger age at admission was a predictor of individual caregiver coaching. Presence of delay/ASD, age, and type of feeding problems were not significant predictors for individualized treatment programing.

CONCLUSION AND IMPLICATIONS

These data provide evidence of difficult caregiver-child interactions that occurs outside of the meal context for some children with severe feeding difficulties and suggest that this association may not be exclusive to children with ASD.

Transient hypothyroxinemia of prematurity and problem behavior in young adulthood

INTRODUCTION

Preterm newborns are at risk of developing transient hypothyroxinemia of prematurity (THoP), which has been associated with subsequent neurodevelopmental impairments. Behavioral outcomes at adult age after THoP have never been reported.

AIM

To examine whether there is an association between THoP and problem behavior at young adult age.

METHODS

This study was part of the follow-up of 19-year-old subjects born very preterm (i.e., <32 weeks) and/or with a very low birth weight (i.e.,<1500g) from the Project On Preterm and Small-for-gestational-age infants (POPS) cohort. We included 468 subjects of the POPS cohort; of whom 123 had THoP. Thyroxine (T4) concentrations were obtained through the national neonatal screening program for congenital hypothyroidism. THoP was defined as a T4 concentration <-3 SD (approximately 60nmol/L). At age 19, behavior was assessed using the Young Adult Self Report and the Young Adult Behavioral Checklist for parents.

RESULTS

THoP was associated with a 1.8 (95% confidence interval (CI): 1.01-3.4) -fold increased odds of self-reported Internalizing behavior, as well as with a 1.9 (95% CI: 1.1-3.1) -fold increased odds of parent-reported Total problem behavior. These relations persisted after correction for demographic and perinatal variables. Similar associations were absent for the other self-reported and parent-reported syndrome and problem scales.

CONCLUSIONS

THoP was associated with more internalizing and total problem behavior at age 19. While our observations warrant more awareness of problem behavior in preterm infants, at present, it is unclear whether these associations are causal and screening for THoP does not seem necessary.

Factors Associated with Teacher Delivery of a Classroom-Based Tier 2 Prevention Program

Teachers sometimes struggle to deliver evidence-based programs designed to prevent and ameliorate chronic problem behaviors of young children with integrity. Identifying factors associated with variations in the quantity and quality of delivery is thus an important goal for the field. This study investigated factors associated with teacher treatment integrity of BEST in CLASS, a tier-2 prevention program designed for young children at risk for developing emotional/behavioral disorders. Ninety-two early childhood teachers and 231 young children at-risk for emotional/behavioral disorders participated in the study. Latent growth curve analyses indicated that both adherence and competence of delivery increased across six observed time points. Results suggest that teacher education and initial levels of classroom quality may be important factors to consider when teachers deliver tier-2 (i.e., targeted to children who are not responsive to universal or tier-1 programming) prevention programs in early childhood settings. Teachers with higher levels of education delivered the program with more adherence and competence initially. Teachers with higher initial scores on the Emotional Support subscale of the Classroom Assessment Scoring System (CLASS) delivered the program with more competence initially and exhibited higher growth in both adherence and competence of delivery across time. Teachers with higher initial scores on the Classroom Organization subscale of the CLASS exhibited lower growth in adherence across time. Contrary to hypotheses, teacher self-efficacy did not predict adherence, and teachers who reported higher initial levels of Student Engagement self-efficacy exhibited lower growth in competence of delivery. Results are discussed in relation to teacher delivery of evidence-based programs in early childhood classrooms.

Comparison of Traditional and Embedded DTT on Problem Behavior and Responding to Instructional Targets

Embedded discrete trial training (DTT) involves the presentation of instructional targets in an activity-based situation, and serves as an alternative to traditional, table-top instruction (Geiger, Carr, LeBlanc, Hanney, Polick, et al. Behavior Analysis in Practice 5, 49-59, 2012). The current study compared the effects of Traditional and Embedded DTT on responding to instructional targets and problem behavior for one child with autism. Although the results showed similar levels of accuracy for instructional targets across both conditions, there were more target exposures and no problem behavior during Embedded DTT. The results are discussed along with future directions for research and clinical practice.

The Impact of Perceived Personal Discrimination on Problem Behavior of Left-Behind Children: A Moderated Mediating Effect Model

This study aimed to determine how pathological Internet use and emotional intelligence affect the relationship between perceived personal discrimination and problem behavior of left behind children. Data were collected from 406 left-behind students from 6 rural primary and secondary schools in Mainland China. Results indicated that perceived personal discrimination could be a predictor of left-behind children's pathological Internet use, and further cause their problem behavior. Pathological Internet use had a partial mediating effect on the relation between perceived personal discrimination and problem behavior. In addition, emotional intelligence played a moderating role in the relationship between perceived personal discrimination and problem behavior, as well as between pathological Internet use and problem behavior. Emotional intelligence could alleviate the negative impact of perceived personal discrimination on problem behavior, as well as the negative impact of pathological Internet use on problem behavior.

An update on the cause and treatment of sleep disturbance in children and adolescents with autism spectrum disorder

Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by abnormalities in social communication/interaction and restrictive, repetitive patterns of behavior. ASD is a relatively common psychiatric disorder, with a prevalence of approximately 1.7% in children. Although many children and adolescents with ASD visit the hospital for medical help for emotional and behavioral problems such as mood instability and self-harming behavior, there are also many visits for sleep disturbances such as insomnia and sleep resistance. Sleep disturbances are likely to increase fatigue and daytime sleepiness, impaired concentration, negatively impact on daytime functioning, and pose challenges in controlling anger and aggressive behavior. Sleep disturbance in children and adolescents with ASD negatively affects the quality of life, nothing to say the quality of life of their families and school members. In this review, sleep disturbances that are common in children and adolescents with ASD and adolescents are presented. The developmental and behavioral impacts of sleep disturbances in ASD were also considered. Finally, non-pharmacological and pharmacological treatments for sleep disturbances in children and adolescents with ASD and adolescents are reviewed.

Evaluating the Efficacy and Social Validity of a Culturally Adapted Training Program for Parents and Service Providers in India

In regions such as India, where one-to-one behavior-analytic intervention is not easily accessible, parents and service providers may advocate for children with disabilities better if they have foundational training in behavioral approaches to problem behavior. The purpose of this study was to evaluate a culturally adapted training delivered in an underresourced region of India. Ten parents and professionals from Chennai completed the training, and the researchers evaluated its effects using a multiple-baseline design. Participants showed improvements in correct responses on a structured form designed to capture skills involved in function-based assessment and intervention, as well as the fidelity of implementation of extinction and functional communication training. Moreover, participants rated the acceptability of training highly on measures of social validity. Guidelines for the education of parents and service providers in underresourced areas outside of the United States are discussed.

Co-use of tobacco and marijuana during pregnancy: Pathways to externalizing behavior problems in early childhood

Use and co-use of tobacco and marijuana during pregnancy are associated with the development of social, cognitive, and behavioral problems for infants and children. However, less is known about the potential developmental impact of the use of tobacco and marijuana in tandem. The present study examined an etiological model for the development of externalizing behavior problems (EBP) in early childhood in a high risk sample (N = 247) of mother-infant dyads with prospective data from pregnancy to 36 months of child age. Co-use during pregnancy and continued maternal tobacco and marijuana use from infancy through early childhood were investigated. Although direct pathways from exposure during pregnancy to EBP were not significant, there was a significant indirect pathway from prenatal tobacco use to EBP via lower breastfeeding duration to lower maternal warmth/sensitivity to EBP, and a pathway from higher maternal affective dysregulation to higher EBP. These results highlight the importance of considering cascading effects of substance use during pregnancy on parental processes within the context of developmental risk and protection.

A quantitative examination of punishment research

The current review examined 368 articles, published between 1967 and 2013, which evaluated punishment-based procedures for the treatment of challenging behavior among persons with developmental disabilities and quantitatively analyzed: (a) the amount of research that has assessed different types of punishment procedures; (b) the characteristics of the participants, behaviors, and treatments included in these studies, and (c) the relative efficacy of the various punishment procedures in general and with regard to the inclusion of reinforcement-based components, method of treatment selection and development, and function of the targeted challenging behaviors. Further, the study evaluated the included studies for the presence of important quality indicators. It was intended that such an analysis would provide a useful overview of the extant research on punishment procedures as a behavior reduction technique. Suggestions regarding research methodology and areas for further investigation are made for future research evaluating punishment-based interventions.

Enhancing the Lives of Foster Youth with Behavioral Interventions

As members of state-funded team to monitor psychotropic medication use and examine cost-effective methods for behavioral treatment in foster care, the authors review behavioral studies on interventions for foster youth who engage in challenging behavior. Four behavioral technologies-preference assessments, teaching procedures, functional behavioral assessment and intervention, and parent training-are discussed. Four case studies and behavioral data for foster youth treated using these technologies are provided. Finally, pediatric providers are encouraged to recommend a practitioner with specialized training in behavior analysis to foster parents if a child displays disruptive behavior.

Tobacco exposure and maternal psychopathology: Impact on toddler problem behavior

Prenatal exposure to tobacco has consistently predicted later problem behavior for children. However, little is known about developmental mechanisms underlying this association. We examined a conceptual model for the association between prenatal tobacco exposure and child problem behavior in toddlerhood via indirect paths through fetal growth, maternal depression, and maternal aggressive disposition in early infancy and via maternal warmth and sensitivity and infant negative affect in later infancy. The sample consisted of 258 mother-child dyads recruited during pregnancy and assessed periodically at 2, 9, and 16months of child age. Pathways via maternal depression and infant negative affect to toddler problem behavior were significant. Further, combined tobacco and marijuana exposure during pregnancy and reduced fetal growth also demonstrated important associations with infant negative affect and subsequent problem behavior. These results highlight the importance of considering the role of maternal negative affect and poor fetal growth as risk factors in the context of prenatal exposure.

Long-Term Effects of Homophobic Stigmatization During Adolescence on Problem Behavior in Emerging Adult Offspring of Lesbian Parents

The long-term impact of homophobic stigmatization on adolescents with lesbian parents has not been explored. This longitudinal study investigated the effects of homophobia experienced during adolescence on problem behavior among emerging adult offspring of lesbian parents. The 72 offspring (37 females and 35 males; all cisgender and 25 years old) were predominantly White, heterosexual, and highly educated. As 17-year-old adolescents, 40.3% (n = 29) reported that they had been treated unfairly because of having lesbian parents. Experienced homophobia during adolescence was indirectly associated with internalizing problems during emerging adulthood through psychological problems during adolescence and meaning in life in emerging adulthood. Adolescent experiences of homophobia were also indirectly related to externalizing problems during emerging adulthood through adolescent psychological problems, but not through meaning in life in emerging adulthood. These findings indicate that long-term effects of homophobic stigmatization during adolescence persist into adulthood. School and community interventions should include all types of families in their diversity appreciation programs.