ABSTRACT S Computer- Based Instruction in Spelling : An Investigation of Optimal Strategies for Presenting Instructional Material Paul Lorton, Jr . Abstrac t Two mathematical models of paired-associate learning (the One Elemen t Model and the Single Operator Linear Model) were used to develop optima l strategies for presenting spelling words to 42 elementary school children . The study was conducted within a computer-based drill and practice projec t using computer terminals with audio capability . For the study two computer programs were developed . One progra m presented and corrected a daily list of sixteen words for each student . The second program planned lessons for each student from the list of 48 words th e student was studying . Words for a lesson were selected by the second progra m as a function of the mathematical model each word represented and the child' s previous performance on each word , An analysis of the correct response made by each child through the stud y demonstrated that the strategy derived from the One Element Model produce d significantly better final performance than the strategy developed from th e Single Operator Linear Model . (Doctoral dissertation, Stanford University . Copies availabl e from the author at the Institute for Mathematical Studies in th e Social Sciences at Stanford . ) C, v v 0 vex c,ve,c-, Q c ooclooe.lv vvvv~~~~vv v 000o0©O005000000 0 0OOC-000000O0000 0 00000060000 0 ca gIcacsooracloca Gac'ac-lQcaocacaoncicaGin o ca ca ca ca ca ca ca ca oca ca Computer Selection Process Explained At the Conference on Instructional Computing in Michiga n held in Ann Arbor in early March, LeRoy Botten summarized th e computer selection study undertaken at Andrews University . Beginning with a number of vendors and using a highly detaile d and carefully constructed process, Andrews decided to select a Sigma 6 computer . Persons interested in the general topic o f computer selection are encouraged to contact Botten directly . A paper which explains the methodology employed by Andrews wa s distributed at the Conference and is available from him . Botten has also indicated that Andrews is developing a "low cost, high-quality" APL terminal, and several readers migh t wish to inquire about that project . Botten is Computer Cente r Director, Andrews University, Berrien Springs MI 49104 . (616/471-7771) . -Item from On-Line, March 1973 . ACM SIGCUE Bulletin v7 #3 July 1973
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