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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

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Peer reviewed Peer reviewed
ERIC Number: EJ650455
Record Type: CIJE
Publication Date: 2002
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0162-3257
The Changing Prevalence of Autism in California.
Croen, Lisa A.; Grether, Judith K.; Hoogstrate, Jenny; Selvin, Steve
Journal of Autism and Developmental Disorders, v32 n3 p207-15 Jun 2002
This population study of eight California birth cohorts (1987-1994) examined the degree to which improvements in detection and changes in diagnosis contribute to the observed increase in autism prevalence from 5.8 to 14.9 per 10,000. A decreasing prevalence of mental retardation without autism suggests that improvements in detection and changes in diagnosis are responsible for the observed increase in autism. (Contains references.) (Author/DB)
Descriptors: Autism, Children, Clinical Diagnosis, Disability Identification, Incidence, Mental Retardation, Statistical Analysis, Trend Analysis
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: Researchers
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: California