Recent approval of HPV vaccines and their widespread provision to young women provide an interesting context to gain experience with the application of statistical methods in current research. We demonstrate how we have used data extracted from a meta-analysis examining the efficacy of HPV vaccines in clinical trials with students in applied…

The role of children's on-task behavior in the prevention of aggressive behavior was assessed among 570 Dutch speaking children followed from second- to third-grade elementary school in Flanders, Belgium. A first objective was to investigate whether individual level variation of on-task behavior moderated the impact of a universal preventive…

In the study, it was researched the effect of internet-based application on student success. Internet-based application was used at the teaching of triangles subject which is included in 8th grade units of triangles and algebra. The study was carried out over the internet with a computer software program: Vitamin Program. The study was carried out…

This article examines the estimation of two-stage clustered designs for education randomized control trials (RCTs) using the nonparametric Neyman causal inference framework that underlies experiments. The key distinction between the considered causal models is whether potential treatment and control group outcomes are considered to be fixed for…

The capacity to learn new visuomotor associations is fundamental to adaptive motor behavior. Evidence suggests visuomotor learning deficits in Parkinson's disease (PD). However, the exact nature of these deficits and the ability of dopamine medication to improve them are under-explored. Previous studies suggested that learning driven by large and…

Can students be taught to better comprehend the diagrams in their textbooks? Can such teaching transfer to uninstructed diagrams in the same domain or even in a new domain? What methods work best for these goals? Building on previous research showing positive results compared to control groups in both laboratory studies and short-term…

This preliminary study investigated how cognitive-linguistic status in multiple sclerosis (MS) is reflected in two speech tasks (i.e. oral reading, narrative) that differ in cognitive-linguistic demand. Twenty individuals with MS were selected to comprise High and Low performance groups based on clinical tests of executive function and information…

Background: Epidemiological information on age-related cardiovascular disease in people with intellectual disability (ID) is scarce and inconclusive. We compared prevalence and incidence of cerebrovascular accident and myocardial infarction over age 50 in a residential population with ID to that in a general practice population. Method: Lifetime…

Unity in Diversity was a randomized controlled trial of a culturally tailored HIV prevention intervention for African American men who have sex with men. The intervention condition was six group-based sessions and one individual session. The control condition was a single-session HIV prevention review. Participants were aged 18 years or older,…

The purpose of the study reported here was to examine the effect of activity with an educational electronic book (e-book), with/without metacognitive guidance, on the emergent literacy (rhyming) and emergent math (essence of addition, ordinal numbers) of kindergartners at risk for learning disability (LD). Seventy-seven children…

The present study involved 120 kindergartners, of whom n = 60 were followed up to first grade. Upon making inquiries regarding closeness in teacher-child relationships in the classrooms, the children participated in a laboratory situation in which they were exposed to computerized tasks. These tasks challenged the cognitive processes thought to…

The current study experimentally evaluated the effects of therapeutic horseback riding on the behavior of children with autism using a multiple baseline across participants design and a waitlist control group for comparison purposes. Participants were observed weekly in an after-school program during four center-based activities and during…

The study examined the efficacy of an intervention designed to promote parents' and preschoolers' references to storybooks' plot and socio-cognitive themes during shared reading within a sample of 58 families from low-SES background. All parents were given four books, one new book weekly, and were instructed to read each book four times per week…

We investigated relations between prosocial behavior, perceived social support, and improvement in depression and anxiety symptoms over 6 months among 102 Acholi adolescent (14-17 years, 58% female adolescents) survivors of war and displacement in Northern Uganda. Adolescents were assessed using a locally developed screener. Regression analyses…

As highlighted by the National Math Panel Report (2008), consistent results from laboratory studies have demonstrated that interleaving worked examples with problems to solve improves learning for novices. The purpose of this work is to create materials and tests that can be used flexibly in classrooms and which employ worked examples interleaved…