Descriptor
| Autism | 1 |
| Birth Rate | 1 |
| Etiology | 1 |
| Statistical Analysis | 1 |
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| Journal of Autism and… | 1 |
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| Journal Articles | 1 |
| Reports - Research | 1 |
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Peer reviewedLandau, Edwina C.; Cicchetti, Domenic V.; Klin, Ami; Volkmar, Fred R. – Journal of Autism and Developmental Disorders, 1999
This study attempted to replicate previously reported increases in birth rates in March and August for individuals with autism. Statistical analysis of 904 cases revealed no significant seasonal effect. Samples were subcategorized into verbal and mute groups and again results failed to support the seasonal hypothesis. (Author/DB)
Descriptors: Autism, Birth Rate, Etiology, Statistical Analysis
