An Analytic Study of One Class in High School

The Psychological Clinic of the University of Pennsylvania, under the direction of Dr. Lightner Witmer, is establishing norms at the fifteen-year-old level. This includes the high school group, which is made up of children who have completed the eighth grade and who are required to attend the high school until they go to work or reach their sixteenth birthday. The present analytic study of all the girls in a ninth grade is undertaken to add to the data already collected in regard to the high school group, to test the norms already established, and to add another set of norms, based upon the reverse memory span for digits.