What factors might account for the sharp rise in the prevalence of autism spectrum disorder?
What will be an ideal response?
What factors might account for the sharp rise in the prevalence of autism spectrum disorder?
The increase is probably a combination of the following factors:
• greater awareness of the disorder
• changes in federal and state policy and law that allow for better identification and reporting of the disorder
• better and/or more widespread screening and assessment procedures
• greater availability of services
• greater acceptance of the label by parents and educators
• changes in the diagnostic criteria to a spectrum of related disorders that includes children with milder forms of autism who would not have been identified previously
• actual increase
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Allergens such as laundry detergents, hand lotions, and grass are classified as:
a. injectables b. inhalants c. ingestants d. contactants
Research on worked-out examples shows that:
a. learning by doing is better than learning by being told b. there is no substitute for practice on solving problems c. both of the above d. none of the above
In order to cope with most required reading, upper-elementary and middle school students would need to know a minimum of about ____word families
A) 10,000 B) 20,000 C) 30,000 D) 50,000
What does the error bar on an error bar chart represent?
A. The confidence interval round the mean. B. The standard error of the mean. C. The standard deviation of the mean. D. It can represent any of a, b or c.