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484
THORNDIKE
one works at one's limit and competes with one's own past record may well be made a regular feature in many school drills. Even if the same length of time produced in children a percentile improvement only half as great as here, the gain would still probably be far greater than the gain by any of the customary forms of drill.
Table I Gives Scores in the Seven Successive Practice Periods | |||||||||||||||||
First | Second | Third | Fourth | Fifth | Sixth | Seventh | |||||||||||
Individual | Sex | Day of beginning | Interval between tests Hours | Time | Examples wrong | Time | Examples wrong | Time | Examples wrong | Time | Examples wrong | Time | Examples wrong | Time | Examples wrong | Time | Examples wrong |
A | m | M | 24 | 550 | 3 | 530 | 5 | 420 | 3 | 420 | 4 | 430 | 4 | 402 | 2 | 382 | 4 |