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961.
The aim of the present study was to investigate the relationship between physiological and performance responses during repeated 6-over fast-bowling spells. Six, first-class, medium-fast bowlers performed 2x6-over spells separated by 45 min of light activity. The 6-over spells were based on the Cricket Australia fast bowling skills test that is a set order of deliveries at a grid-based target. Ball speed, accuracy and full and final 5-m run-up speed were measured on each ball. Nude mass, heart rate, core temperature, capillary blood lactate, pH and glucose, perceptual measures of RPE and muscle soreness (MS) and repeated vertical jump efforts were measured prior to, during and following each spell. Results indicated no decrement (P=0.41) and small effect sizes (d<0.2) in bowling speed (125.7+/-5.1 and 125.4+/-4.5 km.h(-1)) or accuracy (40.4+/-16.1 and 41.6+/-18.0 AU) between spells 1 and 2. No differences (P=0.6-0.8) were present between spells for heart rate, core temperature, lactate, pH, glucose, RPE, MS or vertical jump. Only final 5-m run-up speed showed a large correlation with ball speed (r=0.70), while accuracy and speed were not correlated (r=0.05). In conclusion, repeated 6-over spells in well-trained bowlers results in minimal performance decrement in mild conditions (22 degrees C). As faster bowlers had faster final 5-m run-up speeds, the maintenance of high final 5-m run-up speeds might be important to maintaining bowling speed. Future research should also include a third bowling spell and warmer environmental conditions. 相似文献
962.
William M. Reynolds 《Psychology in the schools》1979,16(1):77-79
The Slosson Intelligence Test, unlike most current measures of intelligence, uses a ratio method of mental age divided by chronological age to obtain an IQ score. Due to this, standard deviations are not stable across age levels and present a problem in diagnosing mental retardation. The Slosson Test Manual provides information whereby an overall test standard deviation of approximately 25 points is obtained. This is reviewed in respect to current criteria for the classification of mental retardation. It is concluded that the Slosson is inappropriate for use in the diagnosis of mental retardation. 相似文献
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The aim was to examine the agreement among parents, teachers, psychologists, and educational diagnosticians in their perceptions of the problem behaviors of emotionally disturbed children. The sample of 194 emotionally disturbed boys and girls included 129 whites and 65 blacks. The use of measures of relationship showed that there was significantly greater consensus among the raters in perceptions of white than of black children; agreement was particularly poor between parents and teachers of black youngsters. The implications of these findings are discussed. 相似文献
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967.
Fox William 《Journal of The Franklin Institute》1898,145(3):214-227
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Ten years ago, BGSU pledged to become the premier learning community in Ohio and one of the best in the nation. With campuswide agreement and widespread assessment, the institution has made gains and has a clear sense of what it needs to do next. 相似文献