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    The Effectiveness of the Otago Screening Protocol in Identifying School-aged Students with Severe Speech-Language Impairments (2007)

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    Theses / Dissertations
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    http://hdl.handle.net/10092/1433
    http://dx.doi.org/10.26021/8643
    
    Thesis Discipline
    Speech and Language Therapy
    Degree Name
    Master of Speech and Language Therapy
    Publisher
    University of Canterbury. Communication Disorders
    Collections
    • Science: Theses and Dissertations [4426]
    Authors
    Musgrave, Jane Ann
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    Abstract

    This study examined the effectiveness of the Otago screening protocol in identifying school-aged children with severe speech and language impairments. In order to do so, the results of the Otago screening protocol were compared with those of comprehensive language assessment as determined by best practice protocol (Gillon & Schwarz, 1998, Kennedy, 2002). Following the completion of the screening and the comprehensive assessments, an evaluation of the true positives and false positives was calculated, and an analysis of the false negative outcomes made. Findings indicated that fourteen of the twenty participants were true positives, three were true negatives, three were false positives, and none were false negatives. The Positive Predictive Value and Negative Predictive Value of the screening protocol was 100%. Test Sensitivity and Specificity were very high at 82% and 100%. Inter-rater reliability was very high, generally ranging from 92-100%. Adding a standardised measure of phonological awareness would improve efficiency of the screening protocol. Consideration of alternative screening tools, such as the GAPS test (Gardner et al, 2006) and the CELF-4 screening test (Semel, Secord & Wiig, 2004), should be made. Additional factors which could influence a screening protocol are discussed. The Otago screening protocol is a valid procedure to detect severe speech and language impairments in school-aged students referred to Special Education.

    Keywords
    screening; speech-language impairment
    Rights
    Copyright Jane Ann Musgrave
    https://canterbury.libguides.com/rights/theses

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