1-3, 1-3½, 3-4, 2-4½, 6-5, 2-5½, 4-6, 1-8½.
Class median 5 Class mode 5
For a speed drill the teacher should have one of these slips and a watch with a second hand. A stop watch would be valuable. Directions should be given for all the pupils to begin reading at the same moment and raise their hands as a signal to the teacher when they have finished. The teacher should give the signal for them to begin as the second hand of her watch reaches sixty. As each pupil raises his hand indicating that he has finished, the teacher should note the time in half minutes opposite that pupil's name on the drill sheet. Any pupil's time should be indicated at the nearest half minute space. For example, a pupil who finishes at two minutes ten seconds should be marked as two minutes; one who finishes at two minutes twenty seconds, at two and one-half.
Mode and Median. In the illustration above, the sheet has been filled with names and scores of a supposed fifth grade class of twenty pupils. On this sheet three minutes occurs once, three and one-half minutes once, four minutes three times, four and one-half minutes twice, five minutes six times, five and one-half minutes twice, six minutes four times and eight and one-half minutes once. The number occurring the largest number of times is five.
This number is called the "mode".
If all the scores are arranged in order with the highest score at the top and the lowest score at the bottom, the middle score in this series is called the "median" and is in this case also "five".
Individual scores. The class median or mode is, however, not so significant as the individual scores. The class score is always determined by the ease or difficulty as well as by the length of the particular exercise read. This makes comparison with other exercises almost valueless. The only significant comparison in this case is between individuals of the same class, and between the score of this class and of other classes of parallel grade who have read the same exercise.
Important facts for G. P. W., the class teacher, in this case are the individual scores and their relative standing. Roy Hunt, who took eight and one-half minutes to read this exercise, is the slowest reader on this occasion. Is this true of other occasions? If so, Roy needs special help and training. It is also clear that Joseph Carmalt and Alice Wilson are rapid readers and it is important to see that their comprehension of the exercise is also adequate. Thus, for the class teacher the important facts are the relative scores of the pupils both in comparison with other pupils and with the former scores of the same pupils.
Scale of approximate speed. The following scale of speeds by grades is based roughly on the Courtis standard tests and may be somewhat helpful to the teacher who may desire such norms.