PHYSICAL DEFECTS AND SCHOOL PROGRESS 



explanation cannot be put forward as conclusive for there are no 

 data to substantiate it. It seems, however, a reasonable explana- 

 tion and one which coincides with the known facts in the case. 



TABLE 42. AVERAGE NUMBER OF GRADES COMPLETED BY PUPILS 

 HAVING NO PHYSICAL DEFECTS COMPARED WITH NUMBER COM- 

 PLETED BY THOSE SUFFERING FROM DIFFERENT DEFECTS. CEN- 

 TRAL TENDENCY AMONG 3,304 CHILDREN, AGES TEN TO FOURTEEN 

 YEARS, IN GRADES ONE TO EIGHT. NEW YORK, 1908 



Scale of Grades 



2345 



No defects 4.94 grades 

 Defective vision 4.94 grades 

 Defective teeth 4.65 grades 

 Defective breathing 4.58 grades 

 Hypertrophied tonsils 4.50 grades 

 Adenoids 4.24 grades 

 Enlarged glands 4.20 grades 



