Table 2.

Criteria for Student Classification

CategoryCriteria
Special education
 Speech-language impairedPerformance of more than 2 SD less than the mean on either the listening comprehension and expressive language subtests of the Child Development Inventory
 Mental retardationIQ less than 74, and performance of more than 2 SD less than the mean on four or more subtests of the CDI
 Specific learning disabilitiesPerformance of more than 1 SD less than the mean and 1 or more SD less than IQ on the Reading, Math, or Written Language Subtests of the Woodcock-Johnson
 Physical impairmentPerformance of more than 1.5 SD less than the mean on the gross and fine motor subtests of the CDI and 1 more SD below the mean on the Reading, Math, or Written Language Subtests of the Woodcock-Johnson or 1.5 SD below the mean on the self-help subtest of the CDI
 OtherChildren with hearing impairment, autism, or serious emotional disturbance who were previously tested and found eligible for special education services
Within normal limitsNone of the above