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    Development of systematic behavioural observation to quantify ongoing cognitive activity limitations after brain injury : a dissertation presented in partial fulfilment of the requirements for the degree of Doctor of Psychology at Massey University, Wellington, New Zealand

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    Abstract
    One of the goals of cognitive rehabilitation following traumatic brain injury is to help people perform everyday tasks. However, options for the rigorous assessment of everyday cognitive effectiveness after rehabilitation are limited. Performance on neuropsychological tests is only moderately correlated with everyday functioning, while previous measures of everyday functioning include only fairly general estimates of overall cognitive functioning. The aim of the current study was to develop an ecologically valid measure that captured a number of subdomains of executive functioning, using systematic behavioural observation of an everyday task. The initial phase of the research involved identifying an everyday task that was sufficiently complex to ensure that executive functioning was utilised in the completion of the task. Participants with traumatic brain injury were then asked to prepare chocolate brownies, using a recipe provided, and a hot drink. Participants were allowed to use any compensatory strategy to help complete the task. Participant performance was directly observed by an examiner and videotaped for subsequent inter-rater reliability. Two independent raters assessed nine components of executive functioning. During this phase, the examiner manuals were modified improving inter-rater reliability. The final version of the measure was then trialled with participants with and without traumatic brain injury. Final inter-rater reliability indicated the approach had merit. Significant and moderate correlations were found between traditional measures of executive functioning and the everyday task. This study employed systematic behavioural observation to obtain fine-grained information regarding a person’s cognitive functioning. With further development, this approach may prove useful for targeting and monitoring specific functional difficulties during cognitive rehabilitation.
    Date
    2010
    Author
    Lewis, Mark
    Rights
    The Author
    Publisher
    Massey University
    URI
    http://hdl.handle.net/10179/1686
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    Copyright © 2018 Massey University
    Contact Us | Send Feedback | Copyright Take Down Request
    DSpace software copyright © Duraspace
    v5.7-14.09.11