"Mental Disability (MD), also known as general learning disability and Mental Retardation (MR), is a generalized neurodevelopmental disorder characterized by significantly impaired intellectual and adaptive functioning. It is defined by an IQ under 70 in addition to deficits in two or more adaptive behaviors that affect everyday, general living. Once focused almost entirely on cognition, the definition now includes both a component relating to mental functioning and one relating to individuals' functional skills in their environments. As a result of this focus on the person's abilities in practice, a person with an unusually low IQ may not be considered to have intellectual disability.
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Naveen Jha born on 16th January, 1971 in Silchar, Assam. He is a renowned psycholgist scholar. He has been Distinguished Scholar-Teacher. He completed his bachelor’s and Master’s degrees from Dibrugarh University, Dibrugarh, Assam and obtained his Ph.D. degree from Tezpur University, Tezpur, Assam. He is an independent researcher. He has published and supervised research on topics including sociomoral development, political orientation, attitudes toward institutional authority, and reputation management. He teaches a wide range of courses, including social psychology, group dynamics, research methods and introductory psychology. He has a particular interest in open textbooks from a social justice perspective.