Following pretraining on three figures, 44 nonhandicapped preschoolers were assigned to experimental groups to investigate methods of integrating a new, similar symbol into a set of familiar symbols to approximate the difficult disciminations encountered by young children in school. (Author)

Since similarity inhibits learning, children will have greater difficulty learning responses that are more similar to each other; the instructional procedure of separating similar sounds was evaluated in two experiments. (DMT)