Community involvement in research as a formal and informal mechanism for science education: Project Egret Watch

Specializations: science and environmental education, biology of herons.     

Do judges enhance home advantage in European championship boxing?

There have been many examples of contentious points decisions in boxing. Professional boxing is scored subjectively by judges and referees scoring each round of the contest. We assessed whether the probability of a home win (and therefore home advantage) increased when bouts were decided by points decisions rather than knockouts. Overall, we found that bouts ending in points decisions had a significantly higher proportion of home wins than those decided by a knockout, though this effect varied across time, and controlling for relative quality of boxers was only effective when using more recent data. Focusing on these data, again the probability of a home win was higher with a points decision and this effect was consistent as “relative quality” varied. For equally matched boxers (“relative quality” = 0), expected probability of a home win was 0.57 for knockouts, 0.66 for technical knockouts and 0.74 for points decisions. The results of the present study lend general support to the notion that home advantage is more prevalent in sports that involve subjective decision-making. We suggest that interventions should be designed to inform judges to counter home advantage effects.     

Acute moderate exercise does not attenuate cardiometabolic function associated with a bout of prolonged sitting

Epidemiological studies suggest that prolonged sitting increases all-cause mortality; yet, physiological causes underpinning prolonged sitting remain elusive. We evaluated cardiometabolic function during prolonged sitting (5 h) in 10 adults with and without 30 min of moderate exercise leading up to the sitting. Mean arterial blood pressure (MAP), heart rate (HR) and posterior tibial artery blood velocity were measured at baseline and every hour subsequently. Blood glucose was measured at baseline, 3 and 5 h, with consumption of a caloric beverage at 1 h. Seated MAP and HR values were ~17 mmHg (P < 0.001) and ~4 bpm (P < 0.05) higher for the moderate exercise versus sitting conditions. A ~ 4 cm·s^?1 (16%) (P < 0.05) decline in posterior tibial artery blood velocity from prolonged sitting was observed, with no benefit conferred from moderate exercise. Postprandial glucose metabolism was not different between conditions (P > 0.05). We conclude prolonged sitting may be related to decreased posterior tibial artery blood velocity. Moreover, an acute bout of moderate exercise does not seem to attenuate cardiometabolic function during prolonged sitting in healthy, young adults.     

Measuring Stress in Families of Children with Disabilities

The degree and nature of stress experienced by the families of infants and toddlers with disabilities has gained increased recognition and interest. The Questionnaire on Resources and Stress (QRS) and the Parenting Stress Index (PSI) are two of the most commonly used measures of familial stress. The concurrent validity of these measures was examined and expectations that QRS and PSI scores were related in expected ways was generally confirmed by both bivariate and multivariate analyses.     

A comparison of student profiles based upon composite scale scores of the WISC-R

The purpose of this study was to investigate the similarity in the pattern of strengths and weaknesses between those students evaluated and placed in special education programs and those students evaluated and not placed in special education programs. The two groups were compared on the basis of 18 composite scale scores obtained from the Wechsler Intelligence Scale for Children-Revised (WISC-R). The sample consisted of 585 students in grades 1–6 located in eastern Kentucky schools. A test for parallelism of the two profiles was conducted with a multiple-profile analysis using a multivariate analysis of variance (MANOVA). The results revealed that the two profiles were parallel. The authors concluded that the two groups have a similar pattern of relative strengths and weaknesses.