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Usability of hierarchical task analysis for fitting the task to Filipinos with cognitive disability
2001 (English)Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The primary objective of this study is to determine the usability of the Hierarchical Task Analysis (HTA) in assessing the demands of tasks against the abilities of Filipinos with cognitive disability (PWDs). The beneficiaries are PWDs, professionals providing service to PWDs, government offices, private companies, and organisations involved in improving the lives of PWDs. HTA was selected primarily for its minimal economic requirements. This quasi-experimental study involves a control-intervention research design. One computing task is analysed using HTA and its demands are assessed against 3 PWDs. The targeted participants are occupational therapists registered in the Philippines, who assess whether the task is fit to each patient and estimate the difficulty each PWD will encounter in the task. Those in the intervention group do a pre-assessment to check for direct effects of HTA, and rate HTA using Likert scale. The response rate is 63%. Seventy-seven participants belong to the intervention group while 49 belong to the control group. Results generally show significant differences between the control and intervention groups and among levels of work experiences for PWD A, but not for PWDs B and C. Pre- and post -assessments of the task’s fitness indicate significant differences for PWD A, but not for PWDs B and C. These results indicate that HTA is suitable for assessing whether the task is fit to a PWD, given the following conditions: that the purpose of analysing a task using HTA is clearly established: that the analyst has a clear understanding of the abilities and limitations of the PWD: and that the analyst has extensive background knowledge about the cognitive impairment. The overall perception about HTA is positive. HTA is perceived to be useful in the participants’ work and in assessment of the task’s fitness. However, further training in HTA is perceived to be necessary.

Place, publisher, year, edition, pages
Keyword [en]
Technology, cognitive disabilities, Hierarchical Task Analysis
Keyword [sv]
URN: urn:nbn:se:ltu:diva-53351ISRN: LTU-EX--01/111--SELocal ID: a611b896-3ac5-47f9-a21e-97a0ca914820OAI: diva2:1026725
Subject / course
Student thesis, at least 15 credits
Educational program
Ergonomics, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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