Remediation of spelling deficits in mentally retarded children : comparative efficacy of overcorrection and interspersal training procedures.
Degree GrantorUniversity of Canterbury
Degree NameMaster of Arts
This thesis investigated the comparative efficacy of instructional procedures to remediate spelling deficits in mentally retarded children. Three experiments are reported. In Experiment 1, the differential effects of overcorrection and interspersal training were compared agains·t a no-training control condition. While both procedures were superior to the no-training control condition, children learnt to spell new or difficult words equally well or better through overcorrection than interspersal training. Experiment 2 investigated the effects of interspersing known words with unknown words. Overcorrection training was compared to overcorrection with interspersal training and a no-training control condition. Whilst children learnt to spell a large number of words during overcorrection training, the interspersal technique provided no additional assistance and hindered the progress of "poorer" spellers. In Experiment 3 overcorrection training was compared to the corrective procedure used during the interspersal training condition of Experiment 1 (the "Neef procedure"). Children showed equally large spelling gains during both overcorrection and the Neef procedure. This suggests that the Neef procedure is an alternative overcorrection procedure. These results are discussed in terms of future research in instructional procedures to remediate the spelling deficits in mentally retarded children.