Anger: Cause or Consequence of Posttraumatic Stress? A Prospective Study of Dutch Soldiers
Many studies have shown that individuals with posttraumatic stress disorder (PTSD) experience more anger over time and across situations (i.e., trait anger) than trauma-exposed individuals without PTSD. There is a lack of prospective research, however, that considers anger levels before trauma exposure.
Bayesian analyses: where to start and what to report
Most researchers in the social and behavioral sciences will probably have heard of Bayesian statistics in which probability is defined differently compared to classical statistics (probability as the long-run frequency versus probability as the subjective experience of uncertainty).
Measurement invariance of the Illness Invalidation Inventory
The Illness Invalidation Inventory (3*I) assesses patients’ perception of responses of others that are perceived as denying, lecturing, not supporting and not acknowledging the condition of the patient. It includes two factors: ‘discounting’ and ‘lack of understanding’.
From a PhD to What? The Importance of the education-employment transition: Lessons from the Netherlands
The number of PhD graduates is on the rise. With the exception of Poland, all of the OECD countries experienced an increase in PhD graduates in the past decade (OECD, 2013). The increase in PhD graduates attests to a growth in knowledge and innovation, a growth that can be advantageous for academia, government and industry alike.
Measuring Implementation of a School-Based Violence Prevention Program: Fidelity and Teachers’ Responsiveness as Predictors of Proximal Outcomes
When school-based prevention programs are put into practice, evaluation studies commonly only consider one indicator of program implementation. The present study investigates how two different aspects of program implementation – fidelity and participant responsiveness – jointly influence proximal outcomes of the school-based violence prevention program ViSC.
Analyzing indirect effects in cluster randomized trials. The effect of estimation method, number of groups and group sizes on accuracy and power
Cluster randomized trials assess the effect of an intervention that is carried out at the group or cluster level. Ajzen’s theory of planned behavior is often used to model the effect of the intervention as an indirect effect mediated in turn by attitude, norms and behavioral intention.
Using the Youth Self-Report internalizing syndrome scales among immigrant adolescents
Although the Youth Self-Report (YSR) has been used in many studies throughout the world, little is known about the equivalence of the factor structure of this instrument for immigrant adolescents.
Costs and Benefits of Bullying in the Context of the Peer Group: A Three Wave Longitudinal Analysis
Whereas previous research has shown that bullying in youth is predictive of a range of negative outcomes later in life, the more proximal consequences of bullying in the context of the peer group at school are not as clear. The present three-wave longitudinal study followed children (N = 394; 53 % girls; Mage = 10.3 at Time 1) from late childhood into early adolescence.
The Satisfaction With Life Scale: Measurement invariance across immigrant groups
The current study examined measurement invariance of the Satisfaction With Life Scale (SWLS; Diener, Emmons, Larsen, & Griffin, 1985) across three immigrant groups, namely, immigrants from the Former Soviet Union (FSU) in Israel, Turkish-Bulgarians, and Turkish-Germans. The results demonstrate measurement invariance of the SWLS across groups.
Facing off with Scylla and Charybdis: a comparison of scalar, partial, and the novel possibility of approximate measurement invariance
Measurement invariance (MI) is a pre-requisite for comparing latent variable scores across groups. The current paper introduces the concept of approximate MI building on the work of Muthén and Asparouhov and their application of Bayesian Structural Equation Modeling (BSEM) in the software Mplus.
Automatic Processes and the Drinking Behavior in Early Adolescence: A Prospective Study
This study examined the bi-directional prospective link between automatic alcohol-approach tendencies and alcohol use in a group of young adolescents (mean age = 13.6 years). The adolescents in the present study were assumed to be at-risk of early alcohol use and later problem drinking.
Internet-Based Early Intervention to Prevent Posttraumatic Stress Disorder in Injury Patients: Randomized Controlled Trial
Posttraumatic stress disorder (PTSD) develops in 10-20% of injury patients. We developed a novel, self-guided Internet-based intervention (called Trauma TIPS) based on techniques from cognitive behavioral therapy (CBT) to prevent the onset of PTSD symptoms.