Descriptor
| Adolescents | 1 |
| Behavior Patterns | 1 |
| Grade 10 | 1 |
| Grade 9 | 1 |
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| Sleep | 1 |
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| Phi Delta Kappan | 1 |
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| Carskadon, Mary A. | 1 |
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Carskadon, Mary A. – Phi Delta Kappan, 1999
A school transition project examined effects on sleep and circadian rhythms in a group of 25 youngsters shifting from an 8:25 a.m. junior high school starting time to a 7:20 a.m. high school starting time. The average amount of sleep on school nights fell substantially for 9th and 10th graders, and was below the amount required for normal…
Descriptors: Adolescents, Behavior Patterns, Grade 10, Grade 9
