Show simple item record

dc.contributor.advisor Blake, Tyler en Lampson, Nicole en 2015-08-25T23:39:05Z en 2015-08-25T23:39:05Z en 2015 en 2015-08-25 en 2015-08 en
dc.identifier.uri en
dc.description Includes bibliographical references (pages 36-36) en
dc.description.abstract ABSTRACT PREDICTING USABILITY PROBLEMS WITH USER GUIDES WITH EXPERT HEURISTIC EVALUATION By Nicole Lampson Master of Arts in Psychology, Human Factors and Applied Psychology This graduate project compares methods in human factors for improving the effectiveness of a consumer user guide in performing common automobile functions. The major methods used during this process included: (1) Heuristic Evaluation (HE); (2) User Testing (UT); and (3) Re-design of a user guide. Three scenarios were selected and were the focus of the HE, UT1, and UT2. During the HE, human factors experts were asked to identify any usability problems in the user guide involving the selected scenarios. In UT1, representative users were asked to complete the scenarios while following the user guide, with performance measured by failures, reported frustration, and time to complete. The user guide was re-designed based on all problems uncovered during HE and UT1 (using human factors principles), and re-tested in UT2 with five different users in order to validate the design changes and compare the performance to UT1. The first hypothesis was HE could identify at least 80% of the usability problems observed in UT1. The second hypothesis was (2) if all usability problems (both HE and UT1) were addressed in a re-design of the user guide, a re-test (UT2) should not introduce new usability problems and would take less time to complete the scenarios. The first hypothesis was supported, showing 93% (10 of 11) of usability problems observed during UT1 were discovered using HE (with the one problem not predicted in UT1 due to experienced frustration). The second hypothesis was not supported, as one new usability problem was introduced during UT2 (two failures for the step) and one previously uncovered problem was not mitigated by the design change (three participants experienced frustration). However, UT2 did show improved performance overall compared to UT1. Also, addressing the HE only problems in the re-design (four total), did not lead to new usability problems for those steps in UT2. This shows that HE can be a trusted method in finding the majority of usability problems with this system (one that does not require training to use), but re-designs should be verified using a second UT. en
dc.description.statementofresponsibility by Nicole Lampson en
dc.format application/pdf en
dc.format.extent vii, 56 pages en
dc.language.iso en en
dc.publisher California State University, Northridge en
dc.rights.uri en
dc.subject user testing en
dc.subject user guide modification en
dc.subject heuristic evaluation en
dc.subject.other Dissertations, Academic -- CSUN -- Psychology. en
dc.title Predicting Usability Problems With User Guides With Expert Heuristic Evaluation en
dc.type Thesis en 2015-08-25T23:39:05Z en
dc.contributor.department California State University, Northridge. Department of Psychology. en M.A. en
dc.contributor.committeemember Quilici, Jill L en
dc.contributor.committeemember Berson, Barry en
dc.rights.license By signing and submitting this license, you the author grant permission to CSUN Graduate Studies to submit your thesis or dissertation, and any additional associated files you provide, to CSUN ScholarWorks, the institutional repository of the California State University, Northridge, on your behalf. You grant to CSUN ScholarWorks the non-exclusive right to reproduce and/or distribute your submission worldwide in electronic or any medium for non-commercial, academic purposes. You agree that CSUN ScholarWorks may, without changing the content, translate the submission to any medium or format, as well as keep more than one copy, for the purposes of security, backup and preservation. You represent that the submission is your original work, and that you have the right to grant the rights contained in this license. You also represent that your submission does not, to the best of your knowledge, infringe upon anyone's copyright. If the submission contains material for which you do not hold copyright, or for which the intended use is not permitted, or which does not reasonably fall under the guidelines of fair use, you represent that you have obtained the unrestricted permission of the copyright owner to grant CSUN ScholarWorks the rights required by this license, and that such third-party owned material is clearly identified and acknowledged within the text or content of the submission. If the submission is based upon work that has been sponsored or supported by an agency or organization other than the California State University, Northridge, you represent that you have fulfilled any right of review or other obligations required by such contract or agreement. CSUN ScholarWorks will clearly identify your name(s) as the author(s) or owner(s) of the submission, and will not make any alterations, other than those allowed by this license, to your submission. en

Files in this item


This item appears in the following Collection(s)

Show simple item record

Search DSpace

My Account

RSS Feeds