tetrachoric correlation coefficient

English Thesaurus

1. a correlation coefficient computed for two normally distributed variables that are both expressed as a dichotomy (noun.cognition)

hypernym	:	coefficient of correlation, correlation, correlation coefficient,
definition	:	a 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) (noun.cognition)

domain category	:	statistics,
definition	:	a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters (noun.cognition)