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)

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)

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)