Developmental disabilities are usually classified as severe, profound, moderate or mild, a

Common types of challenging behaviour include self-injurious behaviour (such as hitting, headbutting, biting), aggressive behaviour (such as hitting others, screaming, spitting, kicking), inappropriate sexualised behaviour (such as public masturbation or groping), behaviour directed at property (suc

Developmental disability is a term used to describe life-long disabilities attributable to mental and/or physical or combination of mental and physical impairments, manifested prior to age twenty-two. The term is used most commonly in the United States to refer to disabilities affecting daily functioning in three or more of the following areas: capacity for independent living, economic self-sufficiency, learning, mobility, receptive and expressive language, self-care, self-direction.