Design standards for print warnings (e.g. signs and labels) recommend the use of signal words to convey the presence and level of a hazard.However,very little research has been conducted on the use of signal words presented auditorily.In the present study,43 voiced signal words were examined as a function of several factors: voice style (monotone,emotional,whisper),sound level (low,high),participant gorup (college students,community volunteers) and gender of the speaker and the prticipant.
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