4. Discussion
In this research it was hypothesized that while the tetrad test sensitivity did not decrease enough to lose its theoretical power advantage over the triangle test when sensory differences were larger (d0 > 1), it might not be the case when the underlying difference was less than a d0 of 1. This was not confirmed here. The stimuli and testing conditions used in this experiment allowed for the targeting of such smaller d0 values in three of the four conditions. In those three conditions, as well as in the fourth where d0 values were 1.14 and 1.35, the tetrad test resulted in a higher number of correct answers than the triangle.