Effects of Mentioning the Incentive Prize in the Email Subject Line on Survey Response

Authors

  • Robert Janke Okanagan Campus Library, University of British Columbia, Kelowna, British Columbia, Canada

DOI:

https://doi.org/10.18438/B8VW27

Keywords:

internet surveys, response rates, e-mail invitations, incentives

Abstract

Objective – This study examined the effects that mentioning the survey incentive prize in the subject line of a reminder email had on the response rate and data quality. To date, manipulation of the subject line, specifically in terms of mentioning the incentive prize, has received limited attention in the survey design literature.

Methods – The delivery of the survey invitation is discussed in terms of the timing of the launch and reminder emails. Particular emphasis is given to the design of the email subject line and justification of the format. Weekly response rates from four LibQUAL+TM surveys were compared. In addition, weekly responses for one year were analyzed using SPSS to investigate if there were any between means differences in terms of three elements of data quality. The three elements were: length of time it took to complete the survey, the number of core questions with an N/A response, and the number of illogical responses where minimum scores were higher than desired.

Results – The response rates for the second week were grouped together based on the presence or absence of the subject line manipulation. There was a significant difference between these means (4.75%, p 0.033). There was no statistical difference in regards to the measures of data quality as determined by a one-way ANOVA test.

Conclusions – Reminding survey participants with an email that mentions the incentive prize in the subject line appears to increase response rates with no deleterious effects on data quality. The results of this investigation are encouraging, and those running the LibQUAL+TM survey in their universities should consider implementing this method to increase response rates. Further research to replicate these findings in other contexts and using an experimental design would be beneficial.

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Author Biography

Robert Janke, Okanagan Campus Library, University of British Columbia, Kelowna, British Columbia, Canada

Learning Services Librarian

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Published

2014-03-10

How to Cite

Janke, R. (2014). Effects of Mentioning the Incentive Prize in the Email Subject Line on Survey Response. Evidence Based Library and Information Practice, 9(1), 4–13. https://doi.org/10.18438/B8VW27

Issue

Section

Research Articles

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