Retrospective think-aloud method: using eye movements as an extra cue for participants' verbalizations
Retrospective think-aloud method: using eye movements as an extra cue for participants' verbalizations
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回顾性出声思考法：使用眼球运动作为参与者言语的额外提示
DOI：
10.1145/1978942.1979116
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
M. Jong
中科院分区：
文献类型：
--
作者：
S. Elling;L. Lentz;M. Jong
回溯性的有声思考方法，参与者在沉默中工作，然后在观看他们表现的录音时用言语表达他们的想法，这种方法经常被用来评估网站。然而，当参与者只看到一些帮助他们记住任务执行过程的视觉线索时，他们可能并不总是能够回忆起他们的想法。在我们的研究中，我们用参与者眼球运动的凝视轨迹来补充表演的录音，以引起更多的言语表达。对传统的回溯性有声思维方案和有眼动的变种方案进行了比较。与我们的预期相反，两种情况在问题的数量、发现这些问题的方式和问题的类型方面没有发现任何差异。对这一结果有两种可能的解释，一种是眼球运动可能会让参与者相当对峙和分心，另一种是我们使用的相当普遍的探测方式。根据观察到的眼球运动，当提出特定问题时，附加值可能会更强。在本文的结论中讨论了对可用性实践者的影响。
The retrospective think-aloud method, in which participants work in silence and verbalize their thoughts afterwards while watching a recording of their performance, is often used for the evaluation of websites. However, participants may not always be able to recall what they thought, when they only see few visual cues that help them remembering their task execution process. In our study we complemented the recording of the performance with a gaze trail of the participant" eye movements, in order to elicit more verbalizations. A comparison was made between the traditional retrospective think-aloud protocols and the variant with eye movements. Contrary to our expectations, no differences were found between the two conditions on numbers of problems, the ways these problems were detected, and types of problems. Two possible explanations for this result are that eye movements might be rather confronting and distracting for participants, and the rather generic way of probing we used. The added value might be stronger when specific questions are asked, based on the observed eye movements. Implications for usability practitioners are discussed in the conclusions of this paper.