Warning Research: An Integrative Perspective

We developed an integrative perspective on the empirical evidence supporting the influence of particular variables on the warning process based on a broad review of the warning literature. The warning process is described in terms of the following four components: notice, encode, comprehend, and comply. Relevant variables are classified as person variables (characteristics of the individual interacting with the warning) and warning variables (characteristics of the warning itself or the context in which the warning appears). This integrative perspective yields general principles about the variables that influence the warning process and serves as a resource for warning developers and as a guide to facilitate effective analysis of warnings. We also identify aspects of the warning process that are not well understood, directions for effective methods of intervention, and a research agenda for future efforts. Actual or potential applications of this research include improving the design of warnings.

[1]  Daniel Johnson A Warning Label for Scaffold Users , 1992 .

[2]  Richard T. Gill,et al.  A Comparative Evaluation of Warning Label Designs , 1987 .

[3]  T. Kline,et al.  Visibility Distance of Highway Signs among Young, Middle-Aged, and Older Observers: Icons Are Better than Text , 1990, Human factors.

[4]  S. David Leonard,et al.  Effects of Benign Experiences on the Perception of Risk , 1986 .

[5]  L R Zeitlin,et al.  Failure to Follow Safety Instructions: Faulty Communication or Risky Decisions? , 1994, Human factors.

[6]  Philip M. Garvey,et al.  Clearer Road Signs Ahead , 1998 .

[7]  M R Lehto,et al.  A Proposed Conceptual Model of Human Behavior and its Implications for Design of Warnings , 1991, Perceptual and motor skills.

[8]  Belinda L. Collins Evaluation of Mine-Safety Symbols , 1983 .

[9]  Kenneth R. Laughery,et al.  Behavioral Effectiveness of Warnings , 1985 .

[10]  Michael S. Wogalter,et al.  Broadening the Range of Signal Words , 1989 .

[11]  James L. McClelland On the time relations of mental processes: An examination of systems of processes in cascade. , 1979 .

[12]  James M. Miller,et al.  Communicating a safety-critical limitation of an infant-carrying product: The effect of product design and warning salience , 1993 .

[13]  Michael A. Rodriguez What Makes a Warning Label Salient? , 1991 .

[14]  Thomas J. Ayres,et al.  Risk and effectiveness criteria for using on-product warnings , 1995 .

[15]  David R. Desaulniers,et al.  Layout, Organization, and the Effectiveness of Consumer Product Warnings , 1987 .

[16]  Michael S. Wogalter,et al.  Comprehension and Perceived Quality of Warning Pictorials , 1995 .

[17]  Michael S. Wogalter,et al.  Judgments of Hazard, Risk, and Danger: Do They Differ? , 1990 .

[18]  Michael S. Wogalter,et al.  Perceptions of Consumer Products: Hazardousness and Warning Expectations , 1986 .

[19]  D. Mackinnon,et al.  Immediate Effects of the Arizona Alcohol Warning Poster , 1993 .

[20]  Michael S. Wogalter,et al.  Pest-Control Products: Reading Warnings and Purchasing Intentions , 1989 .

[21]  Timothy P. Rhoades,et al.  Do Consumers Understand the Difference between “Flammable” and “Combustible”? , 1993 .

[22]  Michael S. Wogalter,et al.  Hazard Level Perceptions of Current and Proposed Warning Sign and Label Panels , 1995 .

[23]  Michael S. Wogalter,et al.  Memory of Instruction Manual Warnings: Effects of Pictorial Icons and Conspicuous Print , 1988 .

[24]  J. N. Robinson,et al.  Safety Information Presentation: Factors Influencing the Potential for Changing Behavior , 1986 .

[25]  Curt C. Braun,et al.  The influence of color on warning label perceptions , 1995 .

[26]  Thomas A. Dingus,et al.  Two Reasons for Providing Protective Equipment as Part of Hazardous Consumer Product Packaging , 1991 .

[27]  Kenneth R. Laughery,et al.  Effects of Warning Explicitness on Product Perceptions , 1989 .

[28]  Michael S. Wogalter,et al.  The Ordering of Over-the-Counter Pharmaceutical Label Components , 1996 .

[29]  Michael S. Wogalter,et al.  Behavioral Compliance with Warnings: Effects of Stress and Placement , 1994 .

[30]  Timothy P. Rhoades,et al.  Emerging Methodologies for the Assessment of Safety Related Product Communications , 1990 .

[31]  Michael S. Wogalter,et al.  Increased effectiveness of an interactive warning in a realistic incidental product-use situation , 1995 .

[32]  Michael S. Wogalter,et al.  Enhancing Label Readability for Over-the-Counter Pharmaceuticals by Elderly Consumers , 1995 .

[33]  A Adams,et al.  The effectiveness of warning signs in hazardous work places: cognitive and social determinants. , 1998, Applied ergonomics.

[34]  Curt C. Braun,et al.  Interaction of Warning Label Features: Determining the Contributions of Three Warning Characteristics , 1995 .

[35]  S. David Leonard,et al.  Adequacy of Responses to Warning Terms , 1991 .

[36]  John L. Lastovicka,et al.  The Impact of Changing Cigarette Warning Message Content and Format , 1984 .

[37]  Jens Rasmussen,et al.  Information Processing and Human-Machine Interaction , 1986 .

[38]  R S Easterby,et al.  Field testing of consumer safety signs: the comprehension of pictorially presented messages. , 1981, Applied ergonomics.

[39]  Lila F. Laux,et al.  Recognizability and Effectiveness of Warning Symbols and Pictorials , 1989 .

[40]  M S Wogalter,et al.  Effects of a video warning sign and social modeling on behavioral compliance. , 1995, Accident; analysis and prevention.

[41]  Austin Adams,et al.  Testing warning signs: Conspicuity and discrimination , 1993 .

[42]  M. Wogalter,et al.  Comprehension and retention of safety pictorials , 1997 .

[43]  Roger L. McCarthy,et al.  Warnings on Consumer Products: Objective Criteria for their use , 1982 .

[44]  Curt C. Braun,et al.  Perceived readability of warning labels with varied font sizes and styles , 1993 .

[45]  Kent P. Vaubel,et al.  The Noticeability of Warnings on Alcoholic Beverage Containers , 1993 .

[46]  Michael S. Wogalter,et al.  Alcohol Beverage Warnings in Print Advertisements , 1991 .

[47]  Harm J. G. Zwaga,et al.  Selecting Comprehensible Warning Symbols for Swimming Pool Slides , 1989 .

[48]  Mark R. Lehto The Influence of Chemical Warning Label Content and Format on Information Retrieval Speed and Accuracy , 1998 .

[49]  Kenneth R. Laughery,et al.  Receiver Characteristics in Safety Communications , 1991 .

[50]  Michael S. Wogalter,et al.  WARNING! Sign and Label Effectiveness , 1996 .

[52]  G. Zuccollo,et al.  The elderly and the medication label: doing it better. , 1985, Age and ageing.

[53]  S L Young Connotation of hazard for signal words and their associated panels. , 1998, Applied ergonomics.

[54]  Wendy A. Rogers,et al.  Designing warnings to compensate for age-related changes in perceptual and cognitive abilities , 1998 .

[55]  L. Kaskutas,et al.  Early impacts of alcoholic beverage warning labels: national study findings relevant to drinking and driving behavior , 1993 .

[56]  Michael S. Wogalter,et al.  Injury Severity and Likelihood in Warnings , 1990 .

[57]  John C. Kreifeldt,et al.  Fuzzy Sets: An application to Warnings and Instructions , 1986 .

[58]  Ingrid M. Martin,et al.  Intended and Unintended Consequences of Warning Messages: A Review and Synthesis of Empirical Research , 1994 .

[59]  Patricia Wright,et al.  Some factors determining when instructions will be read , 1982 .

[60]  J R Wilson,et al.  Safety pictograms: are they getting the message across? , 1998, Applied ergonomics.

[61]  N. C. Silver,et al.  Interaction of signal word and colour on warning labels: differences in perceived hazard and behavioural compliance. , 1995, Ergonomics.

[62]  David M. DeJoy A Revised Model of the Warnings Process Derived from Value-Expectancy Theory , 1991 .

[63]  Michael S. Wogalter,et al.  Comprehension of Pictorial Symbols: Effects of Context and Test Method , 1998, Hum. Factors.

[64]  Jill Annette Strawbridge The Influence of Position, Highlighting, and Imbedding on Warning Effectiveness , 1986 .

[65]  Kenneth R. Laughery,et al.  Warning Messages: Will the Consumer Bother to Look? , 1983 .

[66]  Neil D. Lerner,et al.  Symbol Sign Understandability When Visibility is Poor , 1983 .

[67]  Michael S. Wogalter,et al.  Enhancing the Perceived Readability of Pharmaceutical Container Labels and Warnings: The use of Alternative Designs and Pictorials , 1994 .

[68]  Michael S. Wogalter,et al.  Effect of Container Shape on Hazard Perceptions , 1997 .

[69]  H. Harvey Cohen,et al.  Factors Affecting Consumers' Perceptions of Product Warnings: An Examination of the Differences between Male and Female Consumers , 1987 .

[70]  Michael S. Wogalter,et al.  Compliance to owner's manual warnings: influence of familiarity and the placement of a supplemental directive , 1995 .

[71]  Kenneth R. Laughery,et al.  Effects of Explicitness in Conveying Severity Information in Product Warnings , 1991 .

[72]  N. Clayton Silver,et al.  Type form Variables: Differences in Perceived Readability and Perceived Hazardousness , 1994 .

[73]  Neil D. Lerner,et al.  Assessment of Fire-Safety Symbols , 1982 .

[74]  E. L. Ringseis,et al.  The Comprehensibility and Legibility of Twenty Pharmaceutical Warning Pictograms , 1995 .

[75]  Evangeline A. Chy-Dejoras Effects of an Aversive Vicarious Experience and Modelling on Perceived Risk and Self-Protective Behavior , 1992 .

[76]  M S Wogalter,et al.  Influence of Warning Label Signal Words on Perceived Hazard Level , 1994, Human factors.

[77]  Curt C. Braun,et al.  The Impact of Color on Warnings Research , 1993 .

[78]  L. Kaskutas,et al.  The Role of Health Consciousness in Predicting Attention to Health Warning Messages , 1997, American journal of health promotion : AJHP.

[79]  Michael W. Riley,et al.  An Investigation of Preferred Shapes for Warning Labels , 1982 .

[80]  Keyla Friedmann,et al.  The effect of adding symbols to written warning labels on user behavior and recall , 1988 .

[81]  D W Kline,et al.  The Visibility of Symbolic Highway Signs Can Be Increased among Drivers of All Ages , 1993, Human factors.

[82]  Mark A. deTurck,et al.  A Developmental Analysis of Warning Signs: The Case of Familiarity and Gender , 1989 .

[83]  Judy Edworthy,et al.  An Integrative Approach to Warnings Research , 2000 .

[84]  Jerry L. Purswell,et al.  Warning Effectiveness: What Do We Need to Know , 1987 .

[85]  Monica Trommelen Effectiveness of explicit warnings , 1997 .

[86]  Michael S. Wogalter,et al.  Consumer product warnings: The role of hazard perception , 1991 .

[87]  Michael S. Wogalter,et al.  Relative Order and Space Allocation of Message Components in Hazard Warning Signs , 1995 .

[88]  Thomas A. Dingus,et al.  A Most Critical Warning Variable: Two Demonstrations of the Powerful Effects of Cost on Warning Compliance , 1991 .

[89]  Michael S. Wogalter,et al.  The Influence of Location and Pictorials on Behavioral Compliance to Warnings , 1992 .

[90]  Mark R. Lehto,et al.  Risk-taking, warning labels, training, and regulation: Are they associated with the use of helmets by all-terrain vehicle riders? , 1991 .

[91]  Michael S. Wogalter,et al.  Warning Compliance: Behavioral Effects of Cost and Consensus , 1988 .

[92]  Shirley M. Otsubo A Behavioral Study of Warning Labels for Consumer Products: Perceived Danger and Use of Pictographs , 1988 .

[93]  Michael S. Wogalter,et al.  Effects of Cost and Social Influence on Warning Compliance , 1989 .

[94]  L. Sulsky,et al.  An examination of consumer advisement warning information embedded within written instructions: implications for memory and behaviour. , 1995, Ergonomics.

[95]  P Cairney,et al.  Communication effectiveness of symbolic safety signs with different user groups. , 1982, Applied ergonomics.

[96]  Leslie A. Whitaker,et al.  The Effects of Context on the Comprehension of Graphic Symbols , 1993 .

[97]  Kenneth R. Laughery,et al.  The Biasing Effects of Product Familiarity on Consumers' Awareness of Hazard , 1984 .

[98]  Kenneth R. Laughery,et al.  The New Alcohol Warning Labels: How Noticeable are They? , 1991 .

[99]  T A Dingus,et al.  The effects of compliance cost and specific consequence information on the use of safety equipment. , 1992, Accident; analysis and prevention.

[100]  Timothy P. Rhoades,et al.  A Task-Analytic Approach to the Temporal and Spatial Placement of Product Warnings , 1993 .

[101]  T A Dingus,et al.  Interactivity, information, and compliance cost in a consumer product warning scenario. , 1992, Accident; analysis and prevention.

[102]  Michael S. Wogalter,et al.  Behavioral compliance with warnings: effects of voice, context, and location , 1993 .

[103]  Mark R. Lehto,et al.  Models of the warning process: important implications towards effectiveness , 1993 .

[104]  M S Wogalter,et al.  Warning signal words: connoted strength and understandability by children, elders, and non-native English speakers. , 1995, Ergonomics.

[105]  Michael Wiklund,et al.  Improving Swimming Pool Warning Signs , 1988 .

[106]  M. Wogalter,et al.  Comprehension and Memory of Instruction Manual Warnings: Conspicuous Print and Pictorial Icons , 1990 .

[107]  Kenneth R. Laughery,et al.  An Eye Scan Analysis of Accessing Product Warning Information , 1991 .

[108]  R. Watanabe,et al.  The ability of the geriatric population to read labels on over-the-counter medication containers. , 1994, Journal of the American Optometric Association.

[109]  G C Hogelin,et al.  Drinking-driving and health lifestyle in the United States: Behavioral Risk Factors Surveys. , 1987, Journal of studies on alcohol.

[110]  Curt C. Braun,et al.  The Interaction of Signal Word and Color on Warning Labels: Differences in Perceived Hazard , 1994 .

[111]  Marc L. Resnick The Effects of Four Label Design Parameters on Perceived Reliability, Efficacy and Intent to Purchase of Over-the-counter Medication , 1998 .

[112]  Stephen Lee Young,et al.  Increasing the Noticeability of Warnings: Effects of Pictorial, Color, Signal Icon and Border , 1991 .

[113]  J. Paul Frantz Effect of location and presentation format on attention to and compliance with product warnings and instructions , 1993 .

[114]  Mark S. Sanders,et al.  Human factors in engineering and design, 7th ed. , 1993 .

[115]  A. Chapanis Hazards associated with three signal words and four colours on warning signs , 1994 .

[116]  Robert S. Kennedy,et al.  Signal Word and Color Specifications for Product Warnings: An Isoperformance Application , 1994 .

[117]  S. David Leonard,et al.  How Does the Population Interpret Warning Signals? , 1986 .

[118]  Kenneth R. Laughery,et al.  Effects of Two Type Density Characteristics on the Legibility of Print , 1992 .

[119]  Judy Edworthy,et al.  Warning design : a research prospective , 1996 .

[120]  N. Clayton Silver,et al.  Likelihood of Reading Warnings: The Effect of Fonts and Font Sizes , 1992 .

[121]  Roger W. Morrell,et al.  Processing of Medical information in Aging Patients : Cognitive and Human Factors Perspectives , 1999 .

[122]  S. David Leonard,et al.  Risk Perception and Use of Warnings , 1989 .

[123]  Thomas A. Dingus,et al.  Warning variables affecting personal protective equipment use , 1993 .

[124]  Michael S. Wogalter,et al.  A Summary of Warnings Research , 1999 .

[125]  S L Young,et al.  The effect of alternative product-label design on warning compliance. , 1994, Applied ergonomics.

[126]  J. M. Vanderplas,et al.  Some Factors Affecting Legibility of Printed Materials for Older Adults. , 1980 .

[127]  Tom Greenfield,et al.  Knowledge of Warning Labels on Alcoholic Beverage Containers , 1991 .

[128]  M. Wogalter,et al.  Relative Contribution of Likelihood and Severity of Injury to Risk Perceptions , 1992 .

[129]  Michael S. Wogalter,et al.  Hazard Associations of Warning Header Components , 1995 .

[130]  Robert W. Proctor,et al.  Human factors in simple and complex systems , 1993 .

[131]  Arthur D. Fisk,et al.  Handbook of human factors and the older adult , 1997 .

[132]  Michael S. Wogalter,et al.  Posted Warning Placard: Effects on College Students Knowledge of Alcohol Facts and Hazards , 1991 .

[133]  Neil D. Lerner,et al.  Evaluation of Symbols for Fire Safety , 1980 .

[134]  Michael S. Wogalter,et al.  Facilitating Information Acquisition for Over-the-Counter Drugs using Supplemental Labels , 1996 .

[135]  Michael S. Wogalter,et al.  Incidental Exposure to Rotating Warnings on Alcoholic Beverage Labels , 1994 .

[136]  Robert E. Schlegel,et al.  A Prediction Model for Consumer Behavior regarding Product Safety , 1986 .

[137]  Kenneth R. Laughery,et al.  Warnings: Do They Make a Difference? , 1985 .

[138]  Mark R. Lehto Designing warning signs and labels: a theoretical/scientific framework , 1996 .

[139]  A. Baddeley Human Memory: Theory and Practice, Revised Edition , 1990 .

[140]  John W. Brelsford,et al.  Explicitness of consequence information in warnings , 1993 .

[141]  T Boersema,et al.  Evaluation of a set of graphic symbols. , 1983, Applied ergonomics.

[142]  David B. Boles,et al.  The Effect of Symbols on Warning Compliance , 1990 .

[143]  J. Paul Frantz Effect of Location and Procedural Explicitness on User Processing of and Compliance with Product Warnings , 1994 .

[144]  Alison G. Vredenburgh,et al.  High-risk recreational activities: Skiing and scuba — What predicts compliance with warnings , 1995 .

[145]  Thomas J. Ayres,et al.  What is a Warning and When Will it Work? , 1989 .

[146]  Michael S. Wogalter,et al.  Pharmaceutical container labels: enhancing preference perceptions with alternative designs and pictorials , 1996 .

[147]  Michael S. Wogalter,et al.  Effectiveness of Warnings , 1987 .