Journal
JOURNAL OF COMPUTER ASSISTED LEARNING
Volume 36, Issue 1, Pages 89-101Publisher
WILEY
DOI: 10.1111/jcal.12399
Keywords
digital reading; eye movements; middle school students; multiple-text comprehension; skin conductance
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This study investigated the contribution of both physiological and behavioural process data to the comprehension of conflicting digital texts. We measured skin conductance level (SCL) as an index of arousal and the first-pass and look-back fixation times as indices of visual behaviour while reading. Forty-eight seventh graders read four webpages on genetically modified food, and their comprehension of the texts was measured using a short essay. Results showed that the type of webpage did not differentiate the process data. Statistical procedures for the comparison of a series of regression models revealed that SCL and first-pass fixation time negatively predicted multiple-text comprehension while also considering the control variables. The more the students were aroused while reading and the longer the processing time during the first encounter with the reading material, the poorer their comprehension of the conflicting texts. However, the interaction of prior knowledge and arousal positively predicted multiple-text comprehension. A slope analysis revealed that when participants had high prior knowledge and high arousal during reading, their postreading comprehension performance increased.
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