Connoted Strength of Signal Words by Elderly and Non-Native English Speakers

Abstract

A number of recent studies have examined the connoted strength of signal words used in sign and product label warnings. These words, such as DANGER, WARNING, and CAUTION, are intended to differentiate various levels of hazard (high to low, respectively). Until recently, most studies have only used college students to evaluate signal words. Other populations who are at least equal to or possess greater risk of injury have not been studied. The main purpose of the present research was to determine whether other populations of persons, namely the elderly and non-native English speakers, derive similar meanings (i.e., connoted levels of hazard) from the signal words as have been shown in previous work for college students, as well as, for a sample of grade-school children tested in Silver and Wogalter (1991). A sample of 98 elderly persons and 135 non-native English speakers rated 43 potential signal words on how careful they would be after seeing each term. The results showed that the rank ordering of the words was consistent across both groups and this order corresponded with the ratings from earlier-studied populations. Moreover, there was a significant negative linear relationship between the number of words the non-native English speakers left blank and ratings of understandability by college students in previous research. The forensic implications and practical relevance of these results for hazard communication to diverse populations are discussed.

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References

ANSI. (1991). American national standard for product safety signs and labels: Z535.4. New York: National Electrical Manufacturers Assn.

Bresnahan

T.F.

Bryk

(1975, January). The hazard association values of accident-prevention signs. Professional Safety, pp. 17–25.

Dunlap

G.L.

Granda

R.E.

Kustas

M.S.

(1986). Observer perceptions of implied hazard: Safety signal words and color words (Research Report No. TR 00.3428) Poughkeepsie, NY: IBM.

FMC Corporation. (1985). Product safety sign and label system. Santa Clara, CA: Author.

Francis

W.N.

Kucera

(1982). Frequency analysis of English usage. Boston: Houghton Mifflin.

Laughery

K. R.

Young

S. L.

(1991). An eye scan analysis of accessing product warning information. In Proceedings of the Human Factors Society 35th Annual Meeting (pp. 585–589). Santa Monica, CA: Human Factors Society.

Leonard

S.D.

Hill

G.W.

Karnes

E.W.

(1989). How does the population interpret warning signals? In Proceedings of the Human Factors Society, 33rd Annual Meeting (pp. 550–554). Santa Monica, CA: Human Factors Society.

Leonard

S.D.

Karnes

E.W.

Schneider

(1988). Scale values for warning symbols and words. In Aghazadeh

(Ed.) Trends in ergonomics/human factors V (pp. 669–674).

Ramirez v. Plough Inc., Calif. Ct. App, No. F01950, (5th Dist, 1992).

10.

Satterthwaite

F.E.

(1946). An approximate distribution of estimates of variance components. Biometrics Bulletin, 2, 110–114.

11.

Silver

N.C.

Wogalter

M.S.

(1991). Strength and understanding of signal words by elementary and middle school students. In Proceedings of the Human Factors Society, 35th Annual Meeting (pp. 590–594). Santa Monica, CA: Human Factors Society.

12.

Ursic

(1984). The impact of safety warnings on perception and memory. Human Factors, 26, 677–682.

13.

Westinghouse (1981). Westinghouse product safety label handbook. Trafford, PA: Westinghouse Printing Division.

14.

Wogalter

M.S.

Godfrey

S.S.

Fontenelle

G.A.

Desaulniers

D.R.

Rothstein

P.R.

Laughery

K.R.

(1987). Effectiveness of warnings. Human Factors, 29, 599–612.

15.

Wogalter

M. S.

Jarrard

S. W.

Simpson

S. N.

(1992). Effects of warning signal words on consumer-product hazard perceptions. Proceedings of the Human Factors Society, 36th Annual Meeting (pp. 935–939). Santa Monica, CA: Human Factors Society.

16.

Wogalter

M. S.

Jarrard

S. W.

Simpson

S. N.

(in press). Influence of signal words on perceived hazard levels of consumer products. Human Factors..

17.

Wogalter

M.S.

Silver

N.C.

(1990). Arousal strength of signal words. Forensic Reports, 3, 407–420.

18.

Young

S. L.

(1991). Increasing the noticeability of warnings: Effects of pictorial, color, signal icon, and border. In Proceedings of the Human Factors Society 35th Annual Meeting (pp. 580–584). Santa Monica, CA: Human Factors Society.