マルチメディアマニュアルにおける画像,字幕,ナレーションの提示タイミングと分かりやすさの関係  [in Japanese] The Relationship Between Understandability and Presentation Timing Among Illustrations, Closed Captioning, and Narration In Multimedia Manuals  [in Japanese]

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Abstract

マルチメディアマニュアルの分かりやすさを向上させるため,3種の構成要素(画像,字幕,ナレーション)の提示タイミングと分かりやすさの関係を認知心理学的に議論し,適切な提示タイミングを心理実験により同定した.地震が起きたときの対処手順を説明する防災マニュアルを題材として,3つの実験を実施した.実験参加者は,1秒単位(実験1,2)または0.5秒単位(実験3)で3種の構成要素の提示タイミングが操作されたマニュアルの一場面を見て,分かりやすさを主観的に評価することを求められた.その結果,分かりやすい場面の条件は,画像の1秒後にナレーションが提示されることと,字幕がその間に提示されることの2点であることが明らかになった.

In order to improve understandability of multimedia manuals, the relationship between understandability and presentation timing among illustrations, closed captioning, and narration was discussed from the perspective of cognitive psychology. Psychological experiments identified understandable presentation timing among them. Three experiments are carried out, using a multimedia manual which explains emergency evacuation in case of earthquake. Participants were required to subjectively evaluate understandability of individual segments included in the manual. The presentation timing of three kinds of elements in the manual had been manipulated in 1-second interval (experiments 1 and 2) and 0.5-second interval (experiment 3). The results showed that understandable segments satisfy the following two conditions: starting a narration a second after illustrative presentation and adding closed captions between illustrative presentation and the narration.

Journal

  • Japan Journal of Educational Technology

    Japan Journal of Educational Technology 33(2), 111-119, 2009

    Japan Society for Educational Technology

References:  20

Cited by:  4

Codes

  • NII Article ID (NAID)
    110007386718
  • NII NACSIS-CAT ID (NCID)
    AA11964147
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    1349-8290
  • NDL Article ID
    10615181
  • NDL Source Classification
    ZF1(教育)
  • NDL Call No.
    Z7-904
  • Data Source
    CJP  CJPref  NDL  NII-ELS  J-STAGE 
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