| OCR Text |
Show Ill last paper, and were selected any other paper tto r e p r e s e n t the until 100 were entire 336 secured, fourth grade papers* 3 - This same the 6th 100 representative making From old 50 p a p e r s 96 old 400 the and of papers were 11 ye ,r the old, was gone t h r o u g h the 7th papers 400 papers, representing grade wero the paper;.. secured 5th grade, In t h i s for each maimer grade, papers. all of the taken,and 9 year 104 for the 9, 10, grouped old 11, by age. children, 12 y e a r old, 12 and 13 year There were 56 t h e and 39 10 year Che 1 3 year children. aaoh group scorers. 4 grade, a total these children's old, procedure or the Then, of The mean papers was of ratings the then 5 scorers was taken example, the mean s o o r e s for were arranged tion c o m m i t od • in a frequency This was rated given as the by eaefc correct for the distribution done for either each paper score other the age or by for 11 y e a r and 4 5 trained either that old the paper. group standard devia group. t The as standard deviation, as computed for each age group was follows: For " the • i • The paper, M " average for eeoft For N m 9 year 10 " 22 13 'or age the t» » i m Eavlnr seoured • " the 9 year 20 11 » 22 » i3 H the group " • " * « total group, ,f old • is old " " • H of - .54 .65 points. " m .69 - .66 the given " mean r a t i n g s each belowi pupils - 2.4 • - 2.9 • - 3.3 n .» - 4 . 2 foregoing given m 3 # points. * * 8 information, " the next step in |
