Paul R. Yarnold

Optimal Data Analysis, LLC

This note illustrates the disorder and confusion attributable to analytic ethos whereby a smorgasbord of different statistical tests are used to test identical or parallel statistical hypotheses. Herein four classic methods are used for an application with a binary class (dependent) variable and an ordered attribute (independent variable) measured using a five-point scale. Legacy methods reach different conclusions—which is correct? In absolute contrast, for a given sample and hypothesis novometric analysis identifies every statistically viable model (models vary as functions of precision and complexity) which reproducibly maximizes the predictive accuracy for the sample.