Superintendents of American residential schools for the deaf: a profile

Data on selected characteristics of superintendents of American residential schools for the Deaf were gathered in a 1999 survey. The resulting profile of superintendents of residential schools was then compared with a profile of superintendents of public elementary and secondary schools that had been compiled in 1992 by the American Association of School Administrators. The study population consisted of the lead administrators of the 72 residential schools for the Deaf in operation in the United States at the time of the survey. One particularly note-worthy finding was that these superintendents reported the same beliefs about their essential responsibilities that had been reported by superintendents of public elementary and secondary schools. The greatest disparity between the two groups of superintendents was in how they characterized their relationships with their governing boards: Generally, the residential school superintendents reported relationships that were less formal. The study, apparently the first attempt to profile superintendents of American residential schools for the Deaf, establishes a baseline for future studies of this kind.     

Use of the Missouri children's picture series with school-referred children

The Missouri Children's Picture Series was administered to two groups of teacher-referred male children: one group that was referred for learning problems and the other for behavioral problems. Results revealed no significant mean differences between groups. Questions are raised as to the usefulness and validity of the MCPS as a diagnostic instrument.     

A chimpanzee’s (Pan troglodytes) long-term retention of lexigrams

In this experiment, a chimpanzee’s (Pan troglodytes) long-term retention was examined. The chimpanzee, Lana, was trained to use lexigrams (geometric symbols representing linguistic units) for foods, colors, and objects when she was 2 years of age. At the age of 27, her recognition of three sets of lexigrams was examined. One of these sets (long term lexigrams) included five object lexigrams, one color lexigram, and one food lexigram, none of which had been seen by Lana for more than 20 years. The second set (different-referent lexigrams) contained lexigrams that are still present on current lexigram keyboards, but had been assigned new referents. The third set (same-referent lexigrams) contained lexigrams that had been kept on the keyboards Lana had used and that had retained the same referents. A food, a colored square, or an object was presented, and Lana had to select, by using a joystick, a lexigram on a computer screen. Lana chose the correct lexigram at a level significantly greater than chance for five of the seven lexigrams that she had not seen for more than 20 years.     

Interactive Branded Overlays

This study presents the results of a laboratory experiment that considers the implications of adding interactivity to branded in-program overlays, essentially creating a new model of advertising. The results demonstrate the viability of this new model. Interactive branded overlays generate a substantial amount of interactive response and have no adverse effects on the program's viewing experience. However, because program interactivity distracts viewers from their primary goal, processing program content, interactive overlays are perceived as intrusive, and the response rate to in-program triggers is lower than that for interactive ads within the ad break. We show that by carefully combining in-program interactive banners with program-related trivia banners, perceived intrusiveness, and negative spillover effects on the viewing experience can be minimized. Program interactivity was perceived as less intrusive, and was therefore more effective, in the context of a program featuring high- rather than low-prominence product placement. Implications and future research directions are discussed.     

Confidence crisis of results in biomechanics research

Many biomechanics studies have small sample sizes and incorrect statistical analyses, so reporting of inaccurate inferences and inflated magnitude of effects are common in the field. This review examines these issues in biomechanics research and summarises potential solutions from research in other fields to increase the confidence in the experimental effects reported in biomechanics. Authors, reviewers and editors of biomechanics research reports are encouraged to improve sample sizes and the resulting statistical power, improve reporting transparency, improve the rigour of statistical analyses used, and increase the acceptance of replication studies to improve the validity of inferences from data in biomechanics research. The application of sports biomechanics research results would also improve if a larger percentage of unbiased effects and their uncertainty were reported in the literature.     

The influence of classroom aggression and classroom climate on aggressive-disruptive behavior

Research suggests that early classroom experiences influence the socialization of aggression. Tracking changes in the aggressive behavior of 4,179 children from kindergarten to second-grade (ages 5-8), this study examined the impact of 2 important features of the classroom context--aggregate peer aggression and climates characterized by supportive teacher-student interactions. The aggregate aggression scores of children assigned to first-grade classrooms predicted the level of classroom aggression (assessed by teacher ratings) and quality of classroom climate (assessed by observers) that emerged by the end of Grade 1. Hierarchical linear model analyses revealed that first-grade classroom aggression and quality of classroom climate made independent contributions to changes in student aggression, as students moved from kindergarten to second grade. Implications for policy and practice are discussed.