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631.
632.
Samuel Z. Batten D. D. 《Religious education (Chicago, Ill.)》2013,108(5):538-548
633.
Score equating based on small samples of examinees is often inaccurate for the examinee populations. We conducted a series of resampling studies to investigate the accuracy of five methods of equating in a common-item design. The methods were chained equipercentile equating of smoothed distributions, chained linear equating, chained mean equating, the symmetric circle-arc method, and the simplified circle-arc method. Four operational test forms, each containing at least 110 items, were used for the equating, with new-form samples of 100, 50, 25, and 10 examinees and reference-form samples three times as large. Accuracy was described in terms of the root-mean-squared difference (over 1,000 replications) of the sample equatings from the criterion equating. Overall, chained mean equating produced the most accurate results for low scores, but the two circle-arc methods produced the most accurate results, particularly in the upper half of the score distribution. The difference in equating accuracy between the two circle-arc methods was negligible. 相似文献
634.
Wong SY Chan FW Lee CK Li M Yeung F Lum CC Choy DT Woo J 《Journal of sports sciences》2008,26(3):295-302
The aims of the present study were to assess the maximal oxygen uptake and body composition of adult Chinese men and women, and to determine how these variables relate to age. The cross-sectional sample consisted of 196 men and 221 women aged 20 - 64 years. Maximal oxygen uptake (VO2max) was determined by indirect calorimetry during a maximal exercise test on an electrically braked cycle ergometer. The correlations between VO2max and fat mass were -0.52 in men and -0.58 in women. Linear regression defined the cross-sectional age-related decline in VO2max as 0.35 ml kg(-1) min(-1) year(-1) in men and 0.30 ml kg(-1) min(-1) year(-1) in women. Multiple regression analysis showed that more than 50% of this cross-sectional decline in VO2max was due to fat mass, lean mass, and age. Adding fat mass and lean mass to the multiple regression models reduced the age regression mass from 0.35 to 0.24 ml kg(-1) min(-1) year(-1) in men and from 0.30 to 0.15 ml kg(-1) min(-1) year(-1) in women. We conclude that age, fat mass, and lean mass are independent determinants of maximal oxygen uptake in Chinese adults. 相似文献
635.
Samuel McElroy 《Journal of The Franklin Institute》1862,74(3):145-150
636.
Samuel McElroy 《Journal of The Franklin Institute》1862,73(6):361-366
637.
639.
Joseph Samuel Hepburn Laurence Patrick Devlin 《Journal of The Franklin Institute》1934,217(2):213-221
Soy bean milk, prepared in the Korean manner, had approximately the same protein content as cow milk. The other nutrient compounds were present in soy bean milk to a lesser extent than in cow milk.Soy bean milk curdled spontaneously at a lower acidity than cow milk. However, the same period of time was required for spontaneous curdling.In the feeding experiments, the ration containing soy bean milk produced gain in weight less rapidly than the ration containing cow milk, and with less efficiency, i.e., with the consumption of more ration per unit of gain in weight.In feeding experiments, chicken protein was found to be a less efficient protein than casein. 相似文献
640.