Developmental Disabilities Guidelines
How significant limitation in intellectual capacity and adaptive skills are determined.
Introduction: The regulation to define significant limitation in intellectual capacity and adaptive skills states that:
A significant limitation in intellectual capacity is an intellectual capacity that:
- on a full-scale score is 2 standard deviations or more below the mean for a standardized intellectual assessment, or
- is so diminished the individual is unable to complete a standardized intellectual assessment as determined in accordance with the Developmental Disabilities Guidelines published by the Minister as amended from time to time.
A significant limitation in adaptive skills is the inability to perform 6 or more adaptive skills:
- without the assistance of another person, and
- at a level comparable to a peer without a disability as determined in accordance with the Developmental Disabilities Guidelines published by the Minister as amended from time to time.
This document articulates the guidelines established by the Minister, which are to be used in applying the regulation. These guidelines apply to all individuals who apply for PDD supports and services as of the coming into force date for the regulation.
Part 1: Significant limitation in Intellectual Capacity
- The test must be a recognized standardized intelligence quotient (I.Q.) tool consistent with the Professional Guidelines for Psychologists – The Control and Use of Tests by Psychologists published by the College of Alberta Psychologists.
- The I.Q. test must be administered by a registered psychologist under the Health Professions Act who adheres to the College of Alberta Psychologists Standards of Practice (2005).
- The full-scale score of the I.Q. test must be two standard deviations or more below the mean, using a confidence interval of 95% while considering the standard error for measurement (SEM) for the specific assessment instruments used, and the instrument’s strengths and limitations.
- The IQ test must have been administered within the last 5 years from date of application, unless one of the following conditions applies:
- Regardless of the age of the test results, or the age of the applicant when the test was administered, if the applicant provides the results of an IQ test that demonstrates a full-scale IQ score of three (3) or more standard deviations below the mean.
- The applicant provides two (2) or more IQ tests, taken at least two (2) years apart, that both demonstrate a full-scale IQ score of two (2) or more standard deviations below the mean.
- Or as otherwise determined by the CEO of the Community Board.
- PDD will accept the results of a standardized intellectual assessment administered by a psychologist duly registered in one of the following jurisdictions: Canada, United States, Australia, New Zealand.
- Determining when an applicant’s intellectual capacity is so diminished that the individual is unable to complete a standardized intellectual assessment will use the following evidence: Records of assessments and/or educational records completed by registered psychologists and/or physicians that demonstrate the individual meets two (2) or more of the following:
- The individual falls within the severely/profoundly disabled range
- Has severe delays in all or most areas of development and adaptive behavior functioning
- Frequently has other associated disabilities including physical, sensory, medical, behavioral, and/or social
- Requires constant assistance and/or supervision in all areas of functioning including daily living skills and may require assistive technology.
- Has intellectual capacity limitations that preclude the individual from completing the I.Q. test reference above.
Part 2: Significant limitation in adaptive skills
- The tool used to determine significant limitation in adaptive skills will be the PDD Adaptive Skills Inventory.
- The PDD Adaptive Skills Inventory will be performed for every applicant.
- The PDD Adaptive Skills Inventory will be administered by trained PDD staff designated by the PDD Community Board CEO.