coefficient of association

coefficient of association

[¦kō·ə′fish·ənt əv ə‚sō·sē′ā·shən]
(statistics)
A statistic used as a measure of the association of data grouped in a 2 × 2 table; the value of the statistic ranges from -1 to +1, with the former indicating perfect negative association and the latter perfect positive association. Usually designated as Q.

coefficient of association

see CORRELATION.
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References in periodicals archive ?
If as we suggest the two strategies are net substitutes with respect to many of these characteristics, we should expect (1) the coefficient of association member to be negative and those of many of the other explanatory variables in Table 3 to have signs opposite to those reported in Table 2 for association membership.
Laland and Kendal (2003) show that a correlation between the coefficient of association and the order of information acquisition can provide evidence to distinguish directed social learning from asocial learning, while cases of acquisition by offspring before parents may often render a genetic account implausible (unless there are developmental constraints on the adoption of the new behaviour).
Yule's coefficient of association is tested in the data if Y is found to be +1 there is perfect association and if Y = -1 there is perfect negative association(Pillai and Bagavathi 2001).

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