Effects of computerized voice guides on users

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  • コンピュータの音声ガイドが使用者に及ぼす影響
  • コンピュータ ノ オンセイ ガイド ガ シヨウシャ ニ オヨボス エイキョウ

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This study investigated responses elicited by computerized voice guides on users. Because computerized voice guides operate autonomously, they can lower the users' sense of control over tasks, and hence, they might be cause for reactance. Users may likely devaluate the voice guide, and attribute failure to external causes, i.e. to the computer, such as to retain their sense of control. This supposition was tested in an experiment. Participants, 66 college female and male students, were presented problems formulated as questions, and provided with either positive or negative feedback regardless of their answers. In the text condition, written texts were presented on a computer monitor, and participants followed the directions. In the voice guide condition, the text was also displayed, but the it was read aloud in a synthesized voice. As predicted, in the voice guide condition, participants devaluated the computer. When given feedback of failure, they were confident that they would succeed in future attempts in the text condition, but not for voice guide. It was discussed that these results reflect the lack of sense of control imposed upon computerized voice guides on their users.<br>

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