William O. Dwyer

Children's Environmental Attitude and Knowledge Scale: Construction and Validation

Abstract In this article, the construction and validation of an environmental attitude and knowledge scale designed for children are described. The scale fills a need, expressed by several writers in environmental education, for a research instrument that has sound psychometric properties, can be used in a variety of research settings, and will allow comparisons of results across studies.

Sleep compression and sleep education for older insomniacs: self-help versus therapist guidance

A treatment package consisting of a bed-time restriction strategy and education was administered to 50 insomniacs and 50 noninsomniacs 60 years or older. Half of the insomniacs and noninsomniacs received treatment through a self-help video only, whereas the remaining treated participants received therapist guidance to supplement the video. A waiting-list control group of 25 senior insomniacs was also included. Sleep knowledge was equivalent for senior insomniacs and noninsomniacs. The self-help insomniac group exhibited improvement on multiple sleep variables, but the addition of therapist guidance appeared to enhance treatment outcome for sleep latency, wake time after sleep onset, and sleep satisfaction. Control participants also improved across time but were generally outperformed by treated insomniacs.

Solid Waste Recovery A Review of Behavioral Programs to Increase Recycling

Twenty-four Earth Days have come and gone and science is still concerned with making our world more proenvironmental. Applied behavioral science in particular has been very active in leading research efforts to develop interventions aimed at encouraging proenvironmental behavior. This article documented the labors of researchers who specifically targeted recycling with behavior change programs. Twenty-seven articles describing 31 experiments were reviewed. The interventions in these articles were categorized into antecedents (i.e., conditions introduced prior to the target behavior) and consequences (i.e., conditions presented after the target behavior occurred). Twenty of the experiments manipulated antecedent conditions as the primary intervention, 10 focused on consequences, and 1 used both. The general conclusion of the review was that the years of effort have produced several successful interventions that showed promise for increasing recycling behavior. Unfortunately, though, very few of these interventions demonstrated response maintenance after being discontinued, a finding common for such interventions not only targeting recycling but behavior change in general. The discussion focused on the need for (a) interventions to motivate long-term changes in behavior and (b) interventions aimed at reducing the amount of waste generated.

The Effect of Commitment on Adoption and Diffusion of Grass Cycling

Using a design that also permitted an assessment of the extent to which any increase in grass-cycling behavior diffused to the neighbors of treated participants, two types of commitment strategies for promoting residential grass cycling (i.e., not bagging grass clippings) were investigated. Baseline data were collected over a period of 4 weeks to determine which residents in each of three homogeneous neighborhoods bagged grass clippings for curbside pickup. A total of 558 houses observed to bag grass clippings during this period were included as participants in the experiment. Following baseline, the neighborhoods were randomly assigned to one of three conditions. Results indicated that participants who made a commitment to grass cycle and to talk to their neighbors had grass bags present significantly less often than either the commitment-only or control participants. This effect was present during the 4-week intervention period and also was sustained during an immediate 4-week follow-up period and a delayed 4-week follow-up period 12 months later. There also was a diffusion effect in which the neighbors of targeted participants showed significantly more grass cycling than controls, and this effect continued to increase through the 1-year follow-up measure. On the other hand, neither commitment-only participants nor their neighbors differed from controls during any period of the experiment.

Falling Asleep at the Wheel: A Close Look at 1,269 Fatal and Serious Injury-Producing Crashes

This article reviews the literature on the prevalence of sleep-related motor vehicle crashes and presents a detailed analysis of the driver and context variables associated with a sample of 1,269 sleepy-driver, fatal and injury-causing vehicle crashes that occurred over a 6-year period in Tennessee. The crash profiles and trends are discussed in terms of their implications for addressing this significant problem in highway safety. Findings suggest that younger drivers, ages 15-21, are more at-risk for sleep-related motor vehicle crashes. Also, there is some evidence for the effectiveness of rumble strips in reducing sleep-related, run-off-road, interstate crashes.

Evaluation of a fire‐safety training program for preschool children

Children under the age of 5 are 2.5 times more likely to die from fire than any other childhood age group. The work described here is an empirical evaluation of a fire-safety program for preschool children, involving 10 child-care facilities and 443 children ages 3, 4 and 5 years. Children in six centers received an 18-week fire-safety training program called Kid Safe. Children in four other centers were assigned to the delayed-treatment condition and constituted the comparison group. All children were pretested using a comprehensive measure of fire-safety knowledge before the start of the study. The same test was readministered to all children following presentation of the program to the treatment group. At each of the three ages, children in the treatment group showed significantly greater knowledge gains from pretest to post-test than did children in the comparison group. Interestingly, 3-year-olds showed the greatest change of any age group. These findings provide support for the value of training preschool children in fire safety as an important strategy for injury prevention in this age group.

Comparison of Three ADHD Screening Instruments in College Students of Varying Cognitive Ability

Objective: To assess three of the better known screeners for Attention Deficit/Hyperactive Disorder (ADHD) and review the relationship between ADHD and cognitive ability. Method: The three ADHD screeners were administered to 111 college students enrolled in a college Introductory Psychology class, on whom ACT scores and total course performance were also available. As a measure of cognitive ability, the Wonderlic Personnel Test (Wonderlic, Inc., 2000) was also administered. Furthermore, self-report data were available from participants who had been diagnosed with ADHD. The three screeners were the Adult ADHD Self-Report Scale (ASRS) (Kessler et al., 2005), the Conners’ Adult ADHD Rating Scale—Self-Report: Long Version (CAARS) (Conners, Erhardt, & Sparrow, 1999), and the Brown ADD Scales (Brown, 1996). Results: The results are discussed in terms of the scales’ reliability, as well as their relationship to academic aptitude, class performance, and their ability to identify self-reported ADHD diagnoses. Conclusion: All three screeners exhibited acceptable reliability levels. Criterion validity was demonstrated by the relationship between the CAARS’s inattention subscale and self-reported cases of ADHD. Criterion validity was also seen in the relationship found between the CAARS’s hyperactivity/restlessness subscale and the total course performance even after controlling for cognitive ability. Contrary to past research cognitive ability exhibited a weak but significant relationship with a few screeners and screener subscales.

Studying parental involvement in school-based sex education: lessons learned.

With the aim of increasing parental involvement in school-based family life education we examined the value of supplementing the curriculum with joint parent-child homework assignments. In addition we sought to assess the efficacy of a voluntary parental training program that taught techniques for increasing communication between parents and children. The purpose of this article is to share some of our experiences in this area and to provide some insights to others contemplating evaluation work in school-based sexuality education. (excerpt)

Risk screening for ADHD in a college population: is there a relationship with academic performance?

Objective:The present study examines the relationship between self-reported levels of ADHD and academic outcomes, as well as aptitude. Method: A total of 523 college students took the Adult Self-Report Scale–Version 1.1 (ASRS-V1.1), and their scores were compared with course performance and ACT (American College Test) composite scores. Results: The measure identified 70 students (13.4%) as being in the “highly likely” category for an ADHD diagnosis. Course exam and ACT scores for the 70 “highly likely” students were statistically identical to the remaining 453 students in the sample and the 77 students identified as “highly unlikely” as well. Only 4 of the “highly likely” 70 students were registered with the university’s Office of Student Disability Services as having been diagnosed with ADHD. Conclusions: The ASRS-V1.1 failed to discriminate academic performance and aptitude differences between ADHD “highly likely” and “highly unlikely” individuals. The use of self-report screeners of ADHD is questioned in contexts relating ADHD to academic performance.

Delta 9-tetrahydrocannabinol: Elevation of absolute visual thresholds of rabbits☆

The effect of Delta 9-tetrahydrocannabinol (THC) on the ability of rabbits to detect a minimal light stimulus (absolute visual threshold) was examined using the method of limits with an aversive classical conditioning paradigm. Both of two dosage levels of THC, similar to an amount ingested by a human from a single cigarette, significantly elevated the absolute visual threshold of all animals. Normal baseline thresholds, however, returned with 24 hours.