Further Studies on Acquired Deficiency of Color Discrimination*

Abstract

First, the relationship between color discrimination, sex, and age is studied by giving the 100-Hue Test to 480 unselected subjects between the ages of 10 and 64. The mean total score of the 20–24-yr group is significantly lower than that of all other groups; the mean partial scores are always highest in the blue–green and red sections of the test and this tendency is accentuated in the age groups with a higher mean total score.