vineland adaptive behavior scale vineland adaptive behavior scale the vineland adaptive behavior scale is a psychometric instrument used in child and adolescent psychiatry and clinical psychology. it is used especially in the assessment of individuals with an intellectual disability, a pervasive developmental disorder, and other types of developmental delays. vineland adaptive behavior scalepurposeassess intellectual disability history the vineland adaptive behavior scale was first published in 1984, as a revision of the vineland social maturity scale, which is named after vineland training school in vineland, new jersey where edgar doll had developed it. in 2005, vineland-ii was published, which added a 4th domain of motor skills, and in 2016 vineland-3 was published, where the overall number of items on the scale increased by 34%. purpose the vineland adaptive behavior scale assesses a person's adaptive level of functioning by standardized interview of the person or their caregiver through their activities of daily living such as walking, talking, getting dressed, going to school, preparing a meal, etc. the original vineland interview assessed three domains: communication, socialization and daily living, which correspond to the 3 domains of adaptive functioning recognized by the american association on intellectual and developmental disabilities namely conceptual skills (language and literacy, mathematics, time and number concepts, and self-direction), social skills and practical skills of daily living. limitations since no gold standard for evaluation of adaptive behavior exists, the test validity of this tool is unknown.