本文摘自 Streiner DL.Maintaining standards: differences between the standard deviation and standarderror, and when to use each. Can J Psychiatry 1996; 41: 498–502. http://www.07net01.com/program/306401.html 标准差(Standard Deviation) 标准差,缩写为S.D., SD, 或者 s (就是为了把人给弄晕?
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standard deviation:标准偏差standard gauge:标准轨距单词派生动词:standardize(使标准化),如“standardize test scores”(标准化考试成绩)。形容词:standardized(标准化的),如“standardized tests”(标准化考试)。名词:standardization(标准化),如“the process of standardization”(标准化的过程)。你知道吗?在古代战争中...
the reference score would be regarded [...] legco.gov.hk legco.gov.hk 受試者如在某項測試的得分比該 項測試的參考分數的平均分(mean)低一個標準差(standarddeviation),即被界定為於 該項測試所代表的範疇表現較弱。 legco.gov.hk legco.gov.hk ...
in which: X= the aforementioned raw score 0= the converted average or mean score of the population under investigation S.D. = the standard deviation of that population When the sample size is large, a z value of + or 1.96 so-called standard deviation units is statistically significant at ...
Z-scores are expressed in terms of standard deviations from their means. Resultantly, these z-scores have a distribution with a mean of 0 and a standard deviation of 1. The formula for calculating the standard score is given below:As the formula shows, the standard score is simply the ...
标准差(Standard Deviation) 标准差,缩写为S.D., SD, 或者 s (就是为了把人给弄晕?),是描述数据点在均值(mean)周围聚集程度的指标。 如果把单个数据点称为“Xi,” 因此 “X1” 是第一个值,“X2” 是第二个值,以此类推。均值称为“M”。初看上去Σ(Xi-M)就可以作为描述数据点散布情况的指标,也就...
bmi standard deviation score 计算BMI标准差分数(BMI SDS)的计算公式为:BMI SDS = (BMI - BMI平均值) / BMI标准差。其中,BMI平均值和标准差可以参考中国健康人群的BMI分布数据,或者根据具体研究目标进行计算。 此外,也有其他公式用于计算BMI标准差分数,例如:BMI SDS = (BMI - 18.5) / 3.14159。这个公式将BMI...
Define standard deviation. standard deviation synonyms, standard deviation pronunciation, standard deviation translation, English dictionary definition of standard deviation. n. Abbr. SD A statistic used as a measure of the dispersion or variation in a d
The Z-score, or standard score, is the number of standard deviations a given data point lies above or below mean. Standard deviation is essentially a reflection of the amount of variability within a given data set. Bollinger Bands are a technical indicator used by traders and analysts to asse...