The effects of a genetic information leaflet on public attitudes towards genetic testing

Abstract

Genetics opinion surveys often include information to ensure that respondents have sufficient understanding to give informed responses. The information is assumed to be neutral but may skew responses. We assessed the impact of a seemingly “neutral” information leaflet on attitudes towards genetic testing among 1,024 survey respondents, half of whom received the leaflet. The leaflet group reported higher levels of subjective understanding of genetic testing (68 percent vs. 53 percent), were more interested in genetic testing (81 percent vs. 77 percent), and held more positive attitudes towards genetics than people who did not receive the leaflet. Information leaflets may have the intended effect of increasing understanding, but may also unintentionally influence reported views on genetics. In the light of the weight given to public consultation in today’s governance and regulation of human genetics, increased awareness of how even seemingly neutral information can influence public attitudes is recommended.

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References

Bosompra, K. , Flynn, B.S. , Ashikaga, T. , Rairikar, C.J. , Worden, J.K. and Solomon, L.J. (2000) “Likelihood of Undergoing Genetic Testing for Cancer Risk: a Population-based Study,” Preventive Medicine 30: 155-166 .

Bunn, J.Y. , Bosompra, K. , Ashikaga, T. , Flynn, B.S. and Worden, J.K. (2002) “Factors Influencing Intention to Obtain a Genetic Test for Colon Cancer Risk: a Population-based Study,” Preventive Medicine 34: 567-577 .

Evans, G. and Durant, J. (1995) “The Relationship between Knowledge and Attitudes in the Public Understanding of Science in Britain,” Public Understanding of Science 4: 57-74 .

Frewer, L.J. , Howard, C. , Hedderley, D. and Shepherd, R. (1999) “Reactions to Information about Genetic Engineering: Impact of Source Characteristics, Perceived Personal Relevance, and Persuasiveness,” Public Understanding of Science 8: 35-50 .

Henderson, B.J. and Maguire, B.T. (1998) “Lay Representations of Genetic Disease and Predictive Testing,” Journal of Health Psychology 3: 233-241 .

Human Genetics Commission (2003) URL (accessed 1 August 2003): http://www.hgc.gov.uk/genesdirect/

Michie, S. , Drake, H. , Bobrow, M. and Marteau, T.M. (1995) “A Comparison of Public and Professionals’ Attitudes towards Genetic Developments,” Public Understanding of Science 4: 243-253 .

Pardo, R. and Calvo, F. (2002) “Attitudes towards Science among the European Public: a Methodological Analysis,” Public Understanding of Science 11: 155-195 .

Petty, R.E. and Cacioppo, J.T. (1986) “The Elaboration Likelihood Model of Persuasion,” Advances in Experimental Social Psychology 19: 123-205 .

10.

Press, N. and Browner, C.H. (1997) “Why Women Say Yes to Prenatal Diagnosis,” Social Science and Medicine 45: 979-989 .

11.

Sanderson, S.C. , Wardle, J. , Jarvis, M.J. and Humphries, S.E. (2004) “Public Interest in Genetic Testing for Susceptibility to Cancer and Heart Disease: a Population-based Survey in the UK,” Preventive Medicine 39: 458-464 .

12.

Shaw, J.S. and Bassi, K.L. (2001) “Lay Attitudes toward Genetic Testing for Susceptibility to Inherited Diseases,” Health Psychology 6: 405-423 .

13.

Singer, E. , Corning, A. and Lamias, M. (1998) “Trends: Genetic Testing, Engineering, and Therapy: Awareness and Attitudes,” Public Opinion Quarterly 62: 633-664 .

14.

Sturgis, P. and Allum, N. (2004) “Science in Society: Re-evaluating the Deficit Model of Public Attitudes,” Public Understanding of Science 13: 55-74 .

15.

Wellcome Trust (1998) Public Perceptions on Human Cloning: A Social Research Study. Medicine in Society Programme. London: Wellcome Trust .

16.

Wroe, L. and Salkovskis, P.M. (1999) “Factors Influencing Anticipated Decisions about Genetic Testing: Experimental Studies,” British Journal of Health Psychology 4: 19-40 .

17.

Wroe, A.L. and Salkovskis, P.M. (2000) “The Effects of ‘Non-directive’ Questioning on an Anticipated Decision Whether to Undergo Predictive Testing for Heart Disease: an Experimental Study,” Behavior Research and Therapy 38: 389-403 .