Findings from a randomized controlled design study of an ability-based versus needs-based approach to response-contingent learning among children with significant developmental delays and disabilities who did not use instrumental behavior to produce reinforcing consequences are reported. The ability-based intervention and needs-based intervention…

The study investigated variation in infant behaviors and maternal responses among dyads with 18 handicapped and 18 normal infants. Mother-infant interaction sessions were videotaped and motor evaluations conducted. Data collected included behavioral ratings of infant affect and of infant looking patterns, ratings of maternal behavior in play with…

This study, involving 40 young siblings of either handicapped or nonhandicapped children, found that siblings of handicapped children engaged in more parallel and social play and were more nurturing with their siblings than were control children. Mothers were more likely to deliver commands, directives, and reprimands to siblings of handicapped…

Identified predictors of outcomes for 30-month-olds with developmental delays or biomedical risk factors in child care. Found that after accounting for selection effects, child characteristics at 12 months, and home caregiving quality, no child-care variables predicted development or attachment security. Older entry age predicted greater…