In this tutorial, we illustrate the statistical basis of Signal
Detection Theory (SDT) and demonstrate the
similarities between SDT and Hypothesis Testing. SDT was developed in the psychological research
community, but has become popular in fields such as clinical
diagnosis and industrial design.
This tutorial focuses on statistical methods of decision making
under uncertainty. The underlying model assumes bivariate normal
distributions, distributions of N:N weights per group, and decision
outcomes of varying utility. (Spring, 2003).