A Longitudinal Study of the Effect of Computers on the Cognitive Development of Low-Income African American Preschool Children

Research Findings: The current study examined the impact of daily classroom computer use on the cognitive development of preschool children in 14 urban Head Start classrooms. The sample consisted of 208 predominantly African American low-income children with a mean age of 48.8 months. A quasi-experimental design was used in which 7 classrooms had computers and 7 classrooms served as the control. Assessments were made at baseline and at 6, 12, and 18 months. Hierarchical linear modeling was used to assess differences between the computer and control groups on cognitive developmental trajectories. Children in the computer condition displayed significantly greater increases in quantitative development than did children from the control condition. Practice or Policy: Children’s access to computers at home and at school has become increasingly prevalent. However, there is still a substantial disparity in access to technology between different socioeconomic groups. The preschool years may offer a promising opportunity to close this gap in access; however, little is known about the impact of computers on the developing minds of children, particularly those from low-income African American families. Findings from the current study suggest that daily use of computer centers in the Head Start classroom may benefit quantitative outcomes for young children.     

Sports Betting and Other Gambling in Athletes,Fans, and Other College Students

Gambling on college and professional sports and the influence of attending colleges with differing levels of “sports interest” were examined among athletes, sports fans, and other students (N = 10,559) at 119 colleges in the United States using multilevel statistical analysis. Athletes and fans reported more sports gambling compared to other students, with no differences between athletes and fans. Male students were more likely to gamble than female students, but gender did not moderate the relationship between athletic participation and sports gambling. Students attending schools with a greater “sports interest” were more likely to gamble on college sports after adjusting for individual characteristics. Athletes, sports fans, and students attending schools with high “sports interest” are appropriate targets for prevention efforts.     

Is mindfulness training useful for pre-service teachers? An exploratory investigation*

In this study, we investigated the effects of mindfulness training with 23 pre-service teachers. Subjects were assigned to either a six-week mindfulness training program or a control condition. Postintervention, mindfulness participants reported greater emotional clarity and improved regulation of negative emotions. In particular, the mindfulness group was shielded from an increase in negative emotions compared to the control group. In addition, within-group differences suggested that mindfulness training helps student-teachers control impulsive behavior and respond more flexibly to stressful emotions. These findings add to a growing body of research on the benefits of mindfulness. Pre-service teachers, it seems, gain the most benefit in the realm of emotional regulation.     

A novel approach to standardizing landing and balancing tasks in netball using single-leg horizontal jumps

This study aimed to establish the reliability of a novel netball task using a single-leg horizontal jump (SLHJ). Twenty-five females 18–39 years performed SLHJs for maximal displacement and ground-reaction forces. Participants completed two trials for each leg on two occasions separated by 6 weeks of pre-season netball training. Paired sample t tests highlighted no significant differences within trials for either limb. Significant (p ≤ .05) changes are reported for displacement, and dominant and nondominant X and Y forces, after 6-week netball training. SLHJ displacement showed excellent within-session reliability at baseline for dominant (intraclass correlation coefficient (ICC(2,1)) = 0.922, 95% confidence interval (CI) 0.826–0.966) and nondominant (ICC(2,1) = 0.925; 95% CI 0.832–0.967) landings. At 6 weeks, within-session reliability remained excellent for dominant (ICC(2,1) = 0.967, 95% CI 0.926–0.985) and nondominant ICC 0.968 (95% CI 0.929–0.986) landings. The reliability of the single-leg horizontal jump task for netball remained strong after 6 weeks of netball training.     

A Comparison of Training and Competition Demands in Semiprofessional Male Basketball Players

Purpose: The purpose of this study was to quantify and compare training and competition demands in basketball. Methods: Fifteen semiprofessional male basketball players wore microsensors during physical conditioning training (PCT), games-based training (GBT), and competition to measure absolute and relative (·min^?1) PlayerLoad^TM (PL) and estimated equivalent distance (EED). Internal responses were calculated using absolute and relative session rating of perceived exertion (sRPE) and summated heart rate zones (SHRZ). Integrated measures were calculated as sRPE:PL and SHRZ:PL ratios. Results: PlayerLoad (arbitrary units [AU]) and EED (m) were statistically significantly (p < .05) higher during PCT (632 ± 139 AU, d = 1.36; 5,964 ± 1,312 m, d = 1.36; 6.50 ± 0.81 AU·min^?1, d = 2.44; 61.88 ± 7.22 m·min^?1, d = 2.60) and GBT (624 ± 113 AU, d = 1.54; 5,892 ± 1,080 m, d = 1.53; 6.10 ± 0.77 AU·min^?1, d = 2.14; 56.76 ± 6.49 m·min^?1, d = 2.22) than they were during competition (449 ± 118 AU; 3,722 ± 1474 m; 4.35 ± 1.09 AU·min^?1; 41.01 ± 10.29 m·min^?1). Summated heart rate zones were statistically significantly (p < .05) higher during PCT (314 ± 86 AU, d = 1.05; 3.22 ± 0.50 AU·min^?1, d = 1.94) and GBT (334 ± 79 AU, d = 1.38; 3.19 ± 0.54 AU·min^?1, d = 1.83) than they were during competition (225 ± 77 AU; 2.17 ± 0.69 AU·min^?1). The ratio of sRPE:PL was statistically significantly (p < .05) higher during competition (1.58 ± 0.85) than during PCT (0.98 ± 0.22, d = 1.44) and GBT (0.91 ± 0.24, d = 1.90). Conclusion: Training demands exceeded competition demands.     

Kinanthropometric and physiological characteristics of outrigger canoe paddlers

We describe the physiological characteristics of amateur outrigger canoe paddlers. Twenty-one paddlers (13 males, 8 females) were evaluated for body stature, aerobic power, muscular strength and endurance, peak paddle force, flexibility and 250 m sprint paddle performance at the end of the outrigging season. The mean variables ( - s) for the males were: age 27 - 9 years, height 175 - 5 cm, body mass 80 - 5 kg, arm span 178 - 7 cm, sitting height 100 - 2 cm, aerobic power 3.0 - 0.4 l·min-1, maximum bench press strength 85 - 19 kg, right peak paddle force 382 - 66 N and left peak paddle force 369 - 69 N. For the females, these were: age 26 - 6 years, height 168 - 5 cm, body mass 70 - 8 kg, arm span 170 - 5 cm, sitting height 97 - 3 cm, aerobic power 2.3 - 0.5 l· min-1, maximum bench press strength 47 - 10 kg, right peak paddle force 252 - 63 N and left peak paddle force 257 - 60 N. Analysis of variance revealed diff erences (P ? 0.05) between the dominant and non-dominant sides of the body for peak paddle force, isokinetic internal and external rotation, and flexion and extension torque of the shoulder joint. The outrigger canoe paddlers were generally within the range of scores found to describe participants of other water craft sports. Outrigger canoeists should be concerned with the muscular strength imbalances associated with paddling technique.     

Ego‐State Refraining as a Tool in Staff Development

The procedure of ego‐state reframing is described, and its application to an academic setting illustrated by reference to three cases. One of these is a lecturer who used the technique to overcome his anxiety before large classes; a second is a tutor able to become closer to her students; and a third employed the technique to overcome a writing block. The efficacy of the approach is discussed in terms of the four elements essential to successful psychotherapy.