Descriptor
| Autism | 1 |
| Children | 1 |
| Clinical Diagnosis | 1 |
| Disability Identification | 1 |
| Incidence | 1 |
| Mental Retardation | 1 |
| Statistical Analysis | 1 |
| Trend Analysis | 1 |
Source
| Journal of Autism and… | 1 |
Publication Type
| Journal Articles | 1 |
| Reports - Research | 1 |
Education Level
Audience
| Researchers | 1 |
Location
| California | 1 |
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewedCroen, Lisa A.; Grether, Judith K.; Hoogstrate, Jenny; Selvin, Steve – Journal of Autism and Developmental Disorders, 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…
Descriptors: Autism, Children, Clinical Diagnosis, Disability Identification
