Eight students (ages 9-12) with mild mental retardation were instructed in sight-word reading in 2 small groups. Results showed that the time delay procedure was effective, that students learned other students' words through observation, and that students learned some incidental information. (Author/JDD)

This study, involving four secondary-age students with moderate to severe mental retardation, found that four response prompting conditions (progressive time delay and the system of least prompts, both with and without a descriptive consequent event) were effective in teaching reading of recipe words with similar efficiency and maintenance. (JDD)

The study, with four mildly retarded primary-age students, found that constant time delay was an effective instructional strategy when students were taught to read sight words and that incidental learning also occurred as each student acquired some nontargeted spelling information. (Author/DB)

The study evaluated the effectiveness of teaching three teachers of the severely handicapped to use four modified incidental teaching procedures: (1) giving students opportunities for choice; (2) blocking access to materials or events, (3) placing desired materials out of reach, and (4) offering students objects out of context. (Author/DB)

Three fifth grade students with learning disabilities were taught to recognize multisyllabic basal vocabulary words using constant time delay in a small-group instructional arrangement and were assessed on ability to recognize, spell, and define both their own target words and observational words. The procedure was effective in establishing…

Constant time delay was found to be an effective strategy in teaching targeted facts to four secondary-age students with mild and moderate mental retardation. Students also learned other students' target facts through observation and learned incidental information embedded in the consequent event following correct responding. (Author/JDD)

The effects of analog language teaching and natural language teaching on language generalization and long-term retention in 23 adults with autism and severe/profound mental retardation were examined. Natural language teaching was found to have many strengths and few drawbacks and to produce equal generalization and retention under conditions…

This study found that constant time delay was effective in teaching word reading to four students (ages seven to eight) with mild handicaps. Individual attentional response was more effective and efficient in learning to spell words than in choral attentional response. Observational and incidental learning occurred for all students. (Author/JDD)