Effects on Text Understanding and Memory by Types of Display Media : Commparison between E-book Readers abd Papers

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  • 表示媒体が文章理解と記憶に及ぼす影響―電子書籍端末と紙媒体の比較―

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本稿は,表示媒体と表示内容の相違が学習能率にもたらす影響を把握することを目的とする.36 名の被験者に対して,タブレット端末と紙媒体のそれぞれを用いて,文学的文章と説明的文章からなる 2 タイプの文章を読ませ,主観評価および読み速度,記憶テスト,理解テストの結果を比較した.その結果,第一に,主観的な読みやすさの面では,iPad はすでに紙と同等の性能を実現していることがわかった.iPad を支持する理由としては,文字表示の鮮明さやページめくりのしやすさが上位を占める一方,紙では読書時の疲労が少ないことや集中しやすさが上位となった.第二に,文字情報のみからなるコンテンツの場合,読み速度や逐語的記憶では,説明的文章において表示媒体による有意差が認められた.また,文章理解ではタブレット端末よりも紙媒体に優位性があることが明らかになった.The aim of this paper is to understand the learning effect by difference of display media and text contents. Thirty six subjects read two types of short texts that are literary text and descriptive one about scientific topic by using tablet computer (iPad) and paper. We compared subjective evaluation about each type of displays, reading speed per characters, score of memory test and comprehension test after reading texts. At first, the result of subjective impressions showed that iPad's readability has already achieved the equivalent to papers'. Subjects recognized that iPad was superior to paper in terms of display sharpness and easiness of turning pages. On the other hand, subjects felt less fatigue and higher concentration while reading texts on paper. Secondly, significant difference by ANOVA was observed between two types of media on reading speed and word memory test score only using descriptive text. Finally, it is concluded that paper is still higher usability media than tablet computer for understanding sentence.


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