| 单词 | parametric statistic |
| 释义 | parametric statistic (extremely rare) n WORD FAMILY parametric statistic n any statistic computed by procedures that assume the data were drawn from a particular distribution Hypo|Hyper regression coefficient when the regression line is linear (y = ax + b) the regression coefficient is the constant (a) that represents the rate of change of one variable (y) as a function of changes in the other (x); it is the slope of the regression line coefficient of correlation, correlation, correlation coefficienta statistic representing how closely two variables co-vary; it can vary from -1 (perfect negative correlation) through 0 (no correlation) to +1 (perfect positive correlation) Pearson product-moment correlation coefficient, product-moment correlation coefficientthe most commonly used method of computing a correlation coefficient between variables that are linearly related multiple correlation coefficientan estimate of the combined influence of two or more variables on the observed (dependent) variable biserial correlation, biserial correlation coefficienta correlation coefficient in which one variable is many-valued and the other is dichotomous chance-half correlation, split-half correlationa correlation coefficient calculated between scores on two halves of a test; taken as an indication of the reliability of the test tetrachoric correlation, tetrachoric correlation coefficienta correlation coefficient computed for two normally distributed variables that are both expressed as a dichotomy statistic a datum that can be represented numerically |
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