Adenoids and Diseased Tonsils: Their Effect on General Intelligence

by Margaret Cobb Rogers

CHAPTER III.

DISCUSSION OF THE RESULTS

Statistical Study

The statistical study compared two groups of cases in respect to I.Q. These groups were selected from one large group, on the basis of presence or absence of tonsillar defect. The tonsil group was composed of 236 cases, and the normal group, of 294. The distribution of the two groups according to intelligence is set forth in Table I, and in Figs. I and II.