Speech-rate and the perception of speakers : Focusing on speaker's credibility and perceived persuasiveness

ハナシテ ノ ニンチ ニ オヨボス スピーチ ソクド ノ エイキョウ ハナシテ ノ シンピョウセイ オヨビ チカク サレタ セットクリョク ニ チュウモク シテ

ヨコヤマ, ヒトミ

Yokoyama, Hitomi

大坊, 郁夫

ダイボウ, イクオ

Daibo, Ikuo

オオサカ ダイガク ダイガクイン ニンゲン カガク ケンキュウカ タイジン シャカイ シンリガク ケンキュウシツ

知覚された説得力

信頼性

専門性

説得的コミュニケーション

rate of speech

perceived persuasiveness

trustworthiness

expertness

persuasive communication

The purpose of this study was to examine how speech-rate affects the perception of speaker’s credibility and perceived persuasiveness. A total of 146 undergraduates listened to an audiotaped persuasive message of a female voice (“a psychiatric test should be used to judge if a criminal is responsible for his actions.”) at three different speech-rates (fast, medium and slow) and answered speaker’s credibility and perceived persuasiveness. Fast speech enhanced expertness of the message, whereas slow speech enhanced trustworthiness. However, the rate of speech did not affect the perceived persuasiveness. Importance of controlling verbal and nonverbal cues in a speech perception task was discussed.

大坊, 郁夫