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Delays and Disabilities

Preschool Special Education Classifications:

State Eligibility Criteria for Preschool Special Education

In Arizona, test measurements of one and one-half standard deviations to three standard deviations below the mean is used to determine eligibility for preschoolers three to five years of age. This is different than the percentage of developmental delay utilized to determine the eligibility for early intervention for children birth to three.

Hearing Impairment means a loss of hearing acuity, as determined by evaluation pursuant to ARS §15-766, which interferes with the child's performance in the educational environment and requires the provision of special education and related services;

Preschool Moderate Delay means performance by a preschool child on a norm-referenced test that measures at least one and one-half, but not more than three, standard deviations below the mean for children of the same chronological age in two or more of the following areas:

  • Cognitive development.
  • Physical development.
  • Communication development.
  • Social or emotional development.
  • Adaptive development.

Preschool Severe Delay means performance by a preschool child on a norm-referenced test that measures more than three standard deviations below the mean for children of the same chronological age in one or more of the following areas:

  • Cognitive development.
  • Physical development.
  • Communication development.
  • Social or emotional development.
  • Adaptive development.

Preschool Speech/Language Delay means performance by a preschool child on a norm-referenced language test that measures at least one and one-half standard deviations below the mean for children of the same chronological age or whose speech, out of context, is unintelligible to a listener who is unfamiliar with the child.

Visual Impairment means a loss in visual acuity or a loss of visual field, as determined by evaluation pursuant to ARS §15-766, that interferes with the child's performance in the educational environment and that requires the provision of special education and related services.

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