amzs¶

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class sdt_metrics.amzs(methodname, add_prob_method=False)¶

A: Zhang and Mueller’s ROC-Based Measure of Sensitivity

Smith [1] remedied a common confusion with A’ a suggested an improved measure A’’ (not implemented). Zhang and Mueller [2] found that Smith had a mathematical error and properly formulated a new nonparametric measure of sensitivity. They called this measure A. Here it is called amzs() in honor of Mueller, Zhang and Smith.

See also

aprime()

[1]	Zhang, J., and Mueller, S. T. (2005). A note on roc analysis and non-parametric estimate of sensitivity. Psychometrika, 70, 145-154.

[2]	Smith, W. D. (1995). Clarification of Sensitivity Measure A’. Journal of Mathematical Psychology 39, 82-89.

classmethod direct(*args)¶

Calculates metric based on hit, miss, correct rejection, and false alarm counts

static prob(*args)¶

Calculates metric based on hit rate and false alarm rate

classmethod __call__(*args)¶

based on the number of args and the availability of .prob routes call to appropriate method.