Think Aloud: Can Eye Tracking Add Value in Detecting Usability Problems?
Think Aloud: Can Eye Tracking Add Value in Detecting Usability Problems?
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大声思考：眼动追踪可以在检测可用性问题方面增加价值吗？
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发表时间：
2012
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通讯作者：
Alekhya Paruchuri
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作者：
Alekhya Paruchuri
Think Aloud和Eye Tracking的协议以其独特的方式被证明是理解用户思维过程和他们与界面交互时的心理模型的好方法。然而，结合这两种协议在发现可用性问题方面的有效性尚未得到探讨。本研究旨在发现在传统的Think Aloud协议中加入眼动追踪数据（注视和扫描运动）是否可以发现更多的可用性问题。网络用户被分成三组：只进行眼动追踪（ET）、只进行思考（TA）和只进行眼动追踪和思考（ET+TA）。所有条件下的参与者都被要求分别在两个网站上完成两项任务。除了问卷调查外，研究人员还收集了眼动追踪方面的眼动数据，收集了出声思考方面的语言表达。对数据的分析表明，在“眼动追踪和出声思考”（ET + TA）条件下，参与者发现的可用性问题的总数（不是唯一的）高于其他两个条件。然而，Tukey HSD事后测试显示，“ET + TA”和“仅眼动追踪”（ET）条件之间的差异不显著。该分析还发现，“眼动追踪”（ET）和“眼动追踪+出声思考”（ET + TA）的条件之间没有显著差异，导致“出声思考”方法是否具有破坏性的结果不确定。这可能会引导未来的研究人员开发强大的练习课程，以帮助参与者用语言表达和创建眼动数据的评估规则。大声思考&眼动追踪！5 Paruchuri b|论文
The protocols of Think Aloud and Eye Tracking, in their own unique way have proven to be great methods to understand users’ thought processes, and their mental models when interacting with interfaces. However the effectiveness of the combination of the two protocols in discovering usability problems has not been explored. This study aimed to discover if the addition of Eye Tracking data (fixations and scan movements) to the traditional protocol of Think Aloud can uncover more usability problems. Web users were split into three groups: Eye Tracking Only (ET), Think Aloud Only (TA), and Eye Tracking and Think Aloud Only (ET+TA). Participants in all conditions were asked to complete two tasks on two websites each. Along with questionnaires, eye movement data was collected for conditions with the Eye Tracking aspect and verbalizations were collected for conditions with the Think Aloud aspect. The analysis of the data showed that the total number of usability problems (not unique) identified by the participants in the ‘Eye Tracking and Think Aloud’ (ET + TA) condition was higher than the other two conditions. However, a Tukey HSD post-hoc test revealed that the differences between ‘ET + TA’ and the ‘Eye Tracking Only’ (ET) conditions was non-significant. The analysis also which resulted in non-significant differences between the conditions ‘Eye Tracking’ (ET) and ‘Eye Tracking and Think Aloud’ (ET + TA) led to inconclusive results on whether the Think Aloud method is disruptive or not. This may lead future researchers to develop robust practice sessions to help participants verbalize and create evaluation rules for eye movement data. THINK ALOUD & EYE TRACKING! 5 A Paruchuri | Thesis