Dimensionality of oppositional defiant disorder.

BACKGROUND: The present study examined dimensionality of oppositional defiant disorder (ODD) using 10 alternative items using network analysis and confirmatory factor analysis. METHODS: The sample constituted 551 Norwegian children aged 2-12 and their parents. We used network analysis to investigate the connections between different symptoms. Next, we analysed data using traditional confirmatory factor methods, including the more recently proposed bifactor approach. RESULTS: The bifactor model, with a strong general factor and three specific factors, provided the best model fit. Omega values did, however, reveal that only the general and the specific hurtful factor had satisfactory reliability. Network analysis showed that symptoms in general were positively connected within the ODD network. Strong connections between several symptoms within the irritable and hurtful cluster emerged, whereas some symptoms of the headstrong cluster seem to function as bridge nodes between the irritable and hurtful symptom clusters. CONCLUSIONS: The findings support a bifactor model of ODD indicators, but omegas only gave support to the use of a general latent factor, and one specific factor. Network analysis did, however, provide some additional and interesting findings, revealing clusters of strongly connected symptoms and central bridge node symptoms. Implications of the results are discussed.

The short Working Alliance Inventory in parent training: Factor structure and longitudinal invariance.

OBJECTIVE: The purposes of the present study were twofold: (a) to examine the factor structure of the Working Alliance Inventory, Short (WAI-S) and (b) to investigate if factor loadings and thresholds fulfilled properties of longitudinal measurement invariance across two waves of data. METHOD: The study sample consisted of 259 Norwegian parents receiving Parent Management Training, the Oregon model. Parents rated alliance at sessions 3 and 12 during the therapy. Confirmatory factor analyses to assess the fit of a one-, two-, and three-factor model were performed using robust weighted least squares estimation for categorical indicators. RESULTS: The results showed that data provided best fit for the three-factor solution with goal, task, and bond. Furthermore, results demonstrated satisfactory invariance for factor loadings and thresholds across time. CONCLUSIONS: Overall, the results indicate that the WAI-S three-factor solution has acceptable psychometric properties for longitudinal measurement comparisons.

A randomized effectiveness study comparing trauma-focused cognitive behavioral therapy with therapy as usual for youth.

The efficacy of trauma-focused cognitive behavioral therapy (TF-CBT) has been shown in several randomized controlled trials. However, few trials have been conducted in community clinics, few have used therapy as usual (TAU) as a comparison group, and none have been conducted outside of the United States. The objective of this study was to evaluate the effectiveness of TF-CBT in regular community settings compared with TAU. One hundred fifty-six traumatized youth (M age = 15.1 years, range = 10-18; 79.5% girls) were randomly assigned to TF-CBT or TAU. Intent-to-treat analysis using mixed effects models showed that youth receiving TF-CBT reported significantly lower levels of posttraumatic stress symptoms (est. = 5.78, d = 0.51), 95% CI [2.32, 9.23]; depression (est. = 7.00, d = 0.54), 95% CI [2.04, 11.96]; and general mental health symptoms (est. = 2.54, d = 0.45), 95% CI [0.50, 4.58], compared with youth in the TAU group. Youth assigned to TF-CBT showed significantly greater improvements in functional impairment (est. = -1.05, d = -0.55), 95% CI [-1.67, -0.42]. Although the same trend was found for anxiety reduction, this difference was not statistically significant (est. = 4.34, d = 0.30), 95% CI [-1.50, 10.19]. Significantly fewer youths in the TF-CBT condition were diagnosed with posttraumatic stress disorder compared to youths in the TAU condition, χ(2)(1, N = 116) = 4.61, p = .031, Phi = .20). Findings indicate that TF-CBT is effective in treating traumatized youth in community mental health clinics and that the program may also be successfully implemented in countries outside the United States.

Factors associated with non-attendance, opportunistic attendance and reminded attendance to cervical screening in an organized screening program: a cross-sectional study of 12,058 Norwegian women.

BACKGROUND: Cervical cancer incidence and mortality may be reduced by organized screening. Participant compliance with the attendance recommendations of the screening program is necessary to achieve this. Knowledge about the predictors of compliance is needed in order to enhance screening attendance. METHODS: The Norwegian Co-ordinated Cervical Cancer Screening Program (NCCSP) registers all cervix cytology diagnoses in Norway and individually reminds women who have no registered smear for the past three years to make an appointment for screening. In the present study, a questionnaire on lifestyle and health was administered to a random sample of Norwegian women. The response rate was 68%. To address the predictors of screening attendance for the 12,058 women aged 25-45 who were eligible for this study, individual questionnaire data was linked to the cytology registry of the NCCSP. We distinguished between non-attendees, opportunistic attendees and reminded attendees to screening for a period of four years. Predictors of non-attendance versus attendance and reminded versus opportunistic attendance were established by multivariate logistic regression. RESULTS: Women who attended screening were more likely than non-attendees to report that they were aware of the recommended screening interval, a history of sexually transmitted infections and a history of hormonal contraceptive and condom use. Attendance was also positively associated with being married/cohabiting, being a non-smoker and giving birth. Women who attended after being reminded were more likely than opportunistic attendees to be aware of cervical cancer and the recommended screening interval, but less likely to report a history of sexually transmitted infections and hormonal contraceptive use. Moreover, the likelihood of reminded attendance increased with age. Educational level did not significantly affect the women's attendance status in the fully adjusted models. CONCLUSIONS: The likelihood of attendance in an organized screening program was higher among women who were aware of cervical screening, which suggests a potential for a higher attendance rate through improving the public knowledge of screening. Further, the lower awareness among opportunistic than reminded attendees suggests that physicians may inform their patients better when smears are taken at the physician's initiative.

The dimensionality of posttraumatic stress symptoms and their relationship to depression in children and adolescents.

The aims of the study were twofold: to investigate 6 different factor structures in posttraumatic stress symptoms using confirmatory factor analyses with polychoric correlations, and to examine to what extent posttraumatic stress disorder (PTSD) is different from depression. The study was based on a clinical sample of 312 children and adolescents 10 to 18 years old who had experienced different types of traumatic events. Results showed that 3 out of the 6 models demonstrated good fit, but the dysphoria model provided the best fit to the data. Furthermore, correlations between depression and subscales of the dysphoria and numbing models provided additional support for the dysphoria model.

A Reexamination of Child Problem Behaviors as Measured by ECBI: Factor Structure and Measurement Invariance Across Two Parent Training Interventions.

The Eyberg Child Behavior Inventory (ECBI) is a widely used instrument that assesses disruptive problem behaviors via parent report. The present study compares three different conceptualizations of problem behaviors using traditional confirmatory factor analysis (CFA), a bifactor-CFA, and a bifactor exploratory structural equation model, whereof the latter two represent novel conceptualizations of disruptive problem behaviors. Data were derived from 353 Norwegian parents assigned to parent management training-the Oregon model (PMTO; N = 137) or brief parent training (BPT; N = 216), who rated their child's problem behavior (age 3-12 years). The factor models were estimated within the PMTO and BPT samples, and in the total sample. Results showed that the bifactor-CFA, with a general problem behavior factor and three specific factors representing oppositional defiant, conduct problem, and inattentive behavior provided the best model fit. Furthermore, factorial invariance across control/intervention groups and across time (pre/post intervention) was estimated within the PMTO and BPT samples. Results revealed properties of metric and intercept invariance across intervention/control groups and over time, within both interventions. Implications of the results are discussed.

Working alliance and treatment fidelity as predictors of externalizing problem behaviors in parent management training.

OBJECTIVE: The study investigated treatment fidelity and working alliance in the Parent Management Training-Oregon model (PMTO) and investigated how these relate to children's externalizing problem behaviors, as reported by parents and teachers. METHOD: Participants were 331 Norwegian parents who rated the client-therapist working alliance at 3 time points (Sessions 3, 12, and 20). Competent adherence to the PMTO treatment protocol was assessed by PMTO specialists from evaluations of videotaped therapy sessions using the Fidelity of Implementation (FIMP) system (Knutson, Forgatch, & Rains, 2003). Parents and teachers reported children's problem behaviors at baseline and at the end of therapy. Structural equation modeling was used to analyze the repeated measures data. RESULTS: Parents reported high and stable levels of alliance and fidelity from Time 1 to Time 3, with no correlational or direct relations between the 2. Treatment fidelity predicted reductions in parent-reported externalizing behavior, whereas working alliance was related to less change in problem behavior. Alliance and fidelity were unrelated to teacher-reported behavior problems. CONCLUSIONS: The findings point to treatment fidelity as an active ingredient in PMTO and working alliance as a negative predictor of postassessment parent-reported externalizing behavior. More research is needed to investigate whether these findings can be replicated and extended beyond PMTO.