variance n. 1.变化,变动,变更;变度,变量;【统计】(平)方(偏)差。 2.(意见等的)相异;不和,冲突,争论。 3.【法律】诉状和供词的不符。 at variance with 和…不和;和…不符 (at variance with the facts 不符事实。His conduct is at variance with his words. 他言行不符)。 set at variance 使不睦,离间。
component adj. 构成的,组成的,合成的,成分的。 component motion 【物理学】分运动。 component part 组成部分。 n. 部分,成分;【物理学】分力,分向量;【自动化】元件,组件,部件。 component of force 【物理学】分力。 component (star) 【天文学】子星。 components of cost (各种)生产费用。
Conclusion variance component model can appraise the situation that the individual fill in the questionnaire effectively and rationally remove those low - validity cases from data set 结论方差成分模型可用于评价个体完成问卷的情况,对个体效度偏低的数据可以合理地剔除。
As far as the general mixed - linear model is concerned , this paper explores the two - staged prediction of the linear combination about the fixed effects , and the random effects and meanwhile an approximate computation formula is derived for the mean square error of the two - staged prediction which paves the way for comparing and contrasting the advantages and disadvantages of different variance components 摘要对一般的线性混合模型,研究其固定效应与随机效应线性组合的两步预测问题,给出了两步预测均方误差的一个近似计算公式,为比较不同方差分量估计的优劣性进一步奠定了基础。