Importance of Mental Differences. (1) In school work. One of the important results that come from a knowledge of the mental differences in children is that we are able to classify them better. When a child enters school he should be allowed to proceed through the course as fast as his development warrants. Some children can do an eight-year course in six years; others require ten years; still others can never do it. The great majority, of course, can do it in eight years.
Figure XVIII—Completion Test—“Dr. Goldsmith’s Medicine”
Norms for adults, as obtained from university students, are:
| Test | Men | Women |
|---|---|---|
| Substitution Test | 29.1 | 32.2 |
| Rote Memory, Concrete | 28.5 | 28.6 |
| Rote Memory, Abstract | 28.4 | 27.9 |
| Free Association | 51.5 | 49.3 |
| Completion, Dr. Goldsmith’s Medicine | 48.1 | 49.0 |
| Word Building | 20.5 | 20.1 |
| Logical Memory, Costly Temper | 64.0 | 69.6 |
Figure XIX—Frequency Surfaces—Comparing Fourth Grade with High School
The numbers along the base represent mental age; those at the left, the number of pupils of the respective ages.