Comparison of CTA and Textual Feedback in Usability Testing for Malaysian Users

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Abstract

Usability moderators found that the concurrent think-aloud (CTA) method has some cultural limitation that impacts usability testing with Malaysian users. This gives rise to proposing a new method called textual feedback. The research question is to determine whether there are any differences in terms of usability defects found by employing the new method. Due to the high power distance, it is hypothesized that the CTA method may not be sufficient and hence a textual feedback method is recommended instead. Hence, the objective of this study is to determine if there are any differences in usability defects from the concurrent think-aloud (CTA) method (Condition 2) and textual feedback method (Condition 1) within the same group of Malaysian users. A pair-wise t-test was used, whereby users were subjected to performing usability task using both methods. Results reveal that we can reject the null hypothesis of "no difference" in feedback and therefore conclude that textual feedback reported significantly more usability defects than CTA, as the difference is positive t(208) = 4.791, p=0.01.
Original languageEnglish
Publication date2015
Number of pages6
Publication statusPublished - 2015
EventThe ACM Conference on Human Factors in Computing Systems. CHI 2015 - Seoul, Korea, Republic of
Duration: 18 Apr 201523 Apr 2015
Conference number: 33
http://chi2015.acm.org/

Conference

ConferenceThe ACM Conference on Human Factors in Computing Systems. CHI 2015
Number33
CountryKorea, Republic of
City Seoul
Period18/04/201523/04/2015
Internet address

Cite this

Sivaji, A., Clemmensen, T., & Nielsen, S. F. (2015). Comparison of CTA and Textual Feedback in Usability Testing for Malaysian Users. Paper presented at The ACM Conference on Human Factors in Computing Systems. CHI 2015, Seoul, Korea, Republic of.
Sivaji, Ashok ; Clemmensen, Torkil ; Nielsen, Søren Feodor. / Comparison of CTA and Textual Feedback in Usability Testing for Malaysian Users. Paper presented at The ACM Conference on Human Factors in Computing Systems. CHI 2015, Seoul, Korea, Republic of.6 p.
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Sivaji, A, Clemmensen, T & Nielsen, SF 2015, 'Comparison of CTA and Textual Feedback in Usability Testing for Malaysian Users' Paper presented at, Seoul, Korea, Republic of, 18/04/2015 - 23/04/2015, .

Comparison of CTA and Textual Feedback in Usability Testing for Malaysian Users. / Sivaji, Ashok; Clemmensen, Torkil; Nielsen, Søren Feodor.

2015. Paper presented at The ACM Conference on Human Factors in Computing Systems. CHI 2015, Seoul, Korea, Republic of.

Research output: Contribution to conferencePaperResearchpeer-review

TY - CONF

T1 - Comparison of CTA and Textual Feedback in Usability Testing for Malaysian Users

AU - Sivaji, Ashok

AU - Clemmensen, Torkil

AU - Nielsen, Søren Feodor

PY - 2015

Y1 - 2015

N2 - Usability moderators found that the concurrent think-aloud (CTA) method has some cultural limitation that impacts usability testing with Malaysian users. This gives rise to proposing a new method called textual feedback. The research question is to determine whether there are any differences in terms of usability defects found by employing the new method. Due to the high power distance, it is hypothesized that the CTA method may not be sufficient and hence a textual feedback method is recommended instead. Hence, the objective of this study is to determine if there are any differences in usability defects from the concurrent think-aloud (CTA) method (Condition 2) and textual feedback method (Condition 1) within the same group of Malaysian users. A pair-wise t-test was used, whereby users were subjected to performing usability task using both methods. Results reveal that we can reject the null hypothesis of "no difference" in feedback and therefore conclude that textual feedback reported significantly more usability defects than CTA, as the difference is positive t(208) = 4.791, p=0.01.

AB - Usability moderators found that the concurrent think-aloud (CTA) method has some cultural limitation that impacts usability testing with Malaysian users. This gives rise to proposing a new method called textual feedback. The research question is to determine whether there are any differences in terms of usability defects found by employing the new method. Due to the high power distance, it is hypothesized that the CTA method may not be sufficient and hence a textual feedback method is recommended instead. Hence, the objective of this study is to determine if there are any differences in usability defects from the concurrent think-aloud (CTA) method (Condition 2) and textual feedback method (Condition 1) within the same group of Malaysian users. A pair-wise t-test was used, whereby users were subjected to performing usability task using both methods. Results reveal that we can reject the null hypothesis of "no difference" in feedback and therefore conclude that textual feedback reported significantly more usability defects than CTA, as the difference is positive t(208) = 4.791, p=0.01.

KW - Human-centered computing

KW - Human computer interaction (HCI)

KW - HCI design and evaluation methods

KW - Usability testing

M3 - Paper

ER -

Sivaji A, Clemmensen T, Nielsen SF. Comparison of CTA and Textual Feedback in Usability Testing for Malaysian Users. 2015. Paper presented at The ACM Conference on Human Factors in Computing Systems. CHI 2015, Seoul, Korea, Republic of.