vineland social maturity scale vineland social maturity scale the vineland social maturity scale is a psychometric assessment instrument designed to help in the assessment of social competence. it was developed by the american psychologist edgar arnold doll and published in 1940. he published a manual for it in 1953. doll named it after the vineland training school for the mentally retarded, where he developed it. vineland social maturity scalepurposeassess social competence details the test consists of 8 sub-scales measuring: communication skills general self-help ability locomotion skills occupation skills self-direction self-help eating self-help dressing socialization skills