|
Indian Journal of Pharmacology, Vol. 43, No. 1, January-February, 2011, pp. 93-94 Letter to Editor How to increase response rate to a questionnaire study? Jaykaran Department of Pharmacology, Government Medical College, Surat, Gujarat, India Correspondence Address: Jaykaran, Department of Pharmacology, Government Medical College, Surat, Gujarat, India, drjaykaran@yahoo.co.in Code Number: ph11029DOI: 10.4103/0253-7613.75687 Sir, I read with interest the article entitled "Attitude and opinion towards essential medicine formulary" by Sharma et al. [1] In this study, the authors mentioned that out of 200 doctors who were approached, only 90 (45%) completed the questionnaire. It is also said, "non responders constitute a major problem in such surveys". However, it appears that in those studies where response rate is low, chances of bias are high as only those subjects who felt strongly about the survey question may have responded positively and therefore the results obtained may not be generalized. Several journals do not publish a paper if the response rate is less than 70%. [2] Several measures that can be adopted to increase the response rate are as follows [3] :
In cases of studies with lower response rate, it would help to compare characteristics of people who responded with the people who did not respond. If there is significant difference of characteristics between the groups, the results cannot be generalized. On the other hand, if there is no significant difference between the groups, the results can be generalized even if the response rate is low. [2] References
Copyright 2011 - Indian Journal of Pharmacology |
|