chance-half correlation(n = noun.cognition) split-half correlation - a correlation coefficient calculated between scores on two halves of a test; taken as an indication of the reliability of the test;
is a kind of coefficient of correlation, correlation, correlation coefficient

biserial correlation, biserial correlation coefficient, coefficient of correlation, correlation, correlation coefficient, correlation matrix, correlation table, curvilinear correlation, direct correlation, first-order correlation, fourfold point correlation, indirect correlation, kendall partial rank correlation, kendall rank correlation, multiple correlation, multiple correlation coefficient, negative correlation, nonlinear correlation, partial correlation, pearson product-moment correlation coefficient, phi correlation, positive correlation, product-moment correlation coefficient, rank-difference correlation, rank-difference correlation coefficient, rank-order correlation, rank-order correlation coefficient, skew correlation, split-half correlation, spurious correlation, tau coefficient of correlation, tetrachoric correlation, tetrachoric correlation coefficient