An ABAB withdrawal design was used to investigate the effects of explicit timing on accurate oral reading rate of sight word phrases of four elementary students demonstrating difficulty with reading. During baseline the students were exposed to flash cards with sight word phrases and asked to read them out loud and were not made aware that they…

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)