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Mental and Behavioral Conditions

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What Are the Major Symptoms of Intellectually Disabled Adults?

Published Oct,23 2017 | By Andrea Agnew

According to the American Psychiatric Association, the intellectually disabled have considerable intellectual deficits as evidenced by substandard IQ scores. An IQ of less than 70 supports a diagnosis into one of the four categories of intellectual disability: mild, moderate, severe or profound.

Andrea Agnew has been writing professionally since 1993. Her articles have appeared in journals such as "Perceptual and Motor Skills" and "Traditionally Black Colleges and Universities Research Journal." She is a psychology instructor and holds a Master of Science degree in psychology from the University of South Alabama. She is pursuing a doctorate in educational leadership, policy and law at Alabama State University.