All improve to some extent; but those who are
naturally better than their comrades usually become better still, when
conditions for all are the same. E. L. Thorndike gives[12] the following
tabular statement of a test he conducted:
THE EFFECT OF EQUAL AMOUNTS OF PRACTICE UPON INDIVIDUAL DIFFERENCES
IN THE MENTAL MULTIPLICATION OF A THREE-PLACE BY A THREE-PLACE
NUMBER
Amount done Percentage of
per unit of correct figures
time in answers
Hours of Practice
|
| First 5 Examples First 5 Examples
| | |
| | Last 5 or 10 | Last 5 or 10
| | Examples | Examples
| | | | |
| | | Gain | | Gain
Initial highest five individuals 5.1 85 147 61 70 78 18
" next five " 5.
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