An Historical Review of Signal Words: Their Purpose, Meaning and Effect on Risk Perception 901095

The purpose of this paper is to provide an historical review, in the context of the overall effectiveness of warnings, as to: 1) what Signal Words are intended to be; 2) which Signal Words have been used over the years; 3) how they have been used and what they have been intended to convey; and, 4) what they actually mean to the person to whom they are directed.


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