A number of states passed legislation in the 1990s requiring youths to wear helmets when riding bicycles. The effect of this legislation on bicycling fatalities is examined by subjecting data from the Fatality Analysis Reporting System to a panel analysis, using a control-group methodology. A helmet law reduces fatalities by about 15 percent in…

The purpose of this study was to determine if the sequential method of teaching art skills (Brookes, 1986) could improve the success of intermediate grade school art students. Students were required to draw pictures of still life. A between groups pre-posttest crossover design was used to compare and evaluate the quality of perspective drawings…

The circadian rhythm functioning and sleep patterns of 10 adults with Asperger syndrome were investigated using actigraphy. When compared with data from neurotypical adults, both statistical and clinically significant differences were found between the two groups, with the adults with Asperger syndrome showing marked abnormalities in both the…

The authors evaluated the effect of a brief tailored smoking control intervention delivered during basic military training on tobacco use in a population of military personnel (N = 33,215). Participants were randomized to either a tobacco use intervention (smoking cessation, smokeless tobacco use cessation, or prevention depending on tobacco…

It is difficult to transform research evidence into teacher practice; indeed it has been argued that educational research is not very useful to teachers. In this paper, we explore teacher knowledge about a relatively new area of research concerning the role morphemes play in spelling, and seek to transform their practice. We find that although…

In this study, two groups of second graders participated in Fluency-Oriented Reading Instruction (FORI) but their repeated reading experiences used different kinds of texts. One group--the Literature group--read texts from the district's literature-based, basal reading program. The second group--the Content group--read from a set of science and…

This study examined the effects of the Second Step social-emotional learning program and addressed the relations between social cognitions and prosocial and antisocial behavior. Children (N = 1,253) in intervention and control groups were assessed by teacher ratings, self report, and observation in two conflict situations. Intervention children…

In order to determine the effects of gender and scholastic ability on vocabulary retention and reading comprehension in a foreign language, 181 men and women enrolled in a first-year Spanish course were asked to either read a passage in Spanish on a computer and create annotations for a list of words found in the passage (experimental group), or…

The present study investigated the influence of acoustical characteristics on the implicit learning of statistical regularities (transition probabilities) in sequences of musical timbres. The sequences were constructed in such a way that the acoustical dissimilarities between timbres potentially created segmentations that either supported (S1) or…

This study investigated the effect of direct vocabulary learning using Computer Assisted Language Learning (CALL) on vocabulary knowledge, reading comprehension, and speed of word recognition. It found that students who used Tutorial CALL to learn highly frequent vocabulary did learn a significantly larger number of words than those in a control…

It is difficult to transform research evidence into teacher practice; indeed it has been argued that educational research is not very useful to teachers. In this paper, we explore teacher knowledge about a relatively new area of research concerning the role morphemes play in spelling, and seek to transform their practice. We find that although…

The repetitive, stereotyped and obsessive behaviours, which are core diagnostic features of autism, are thought to be underpinned by executive dysfunction. This study examined executive impairment in individuals with autism and Asperger's disorder using a verbal equivalent of an established pseudo-random number generating task. Different patterns…

To investigate whether motor skill learning depends on de novo protein synthesis, adult rats were trained in an acrobatic locomotor task (accelerating rotarod) for 7 d. Animals were systemically injected with cycloheximide (CHX, 0.5 mg/kg, i.p.) 1 h before sessions 1 and 2 or sessions 2 and 3. Control rats received vehicle injections before…

Saxon Algebra is a full-year mathematics curriculum designed for 8th- and 9th-grade students. This WWC Study Report reviews a study of the effects of the Saxon Algebra curriculum on 8th-grade student achievements. Students using this curriculum were compared with students using a curriculum from the University of Chicago Mathematics Project…

This study investigated the verbal and visuospatial processing and storage skills of children with SLI and typically developing children. Fourteen school-age children with SLI, and two groups of typically developing children matched either for age or language abilities, completed measures of processing speed and storage capacity, and a set of…