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Type: Journal article
Title: A comparison of data quality and practicality of online versus postal questionnaires in a sample of testicular cancer survivors
Author: Smith, A.
King, M.
Butow, P.
Olver, I.
Citation: Psycho-Oncology: journal of the psychological, social and behavioral dimensions of cancer, 2013; 22(1):233-237
Publisher: John Wiley & Sons Ltd
Issue Date: 2013
ISSN: 1057-9249
Statement of
Allan ‘Ben’ Smith, Madeleine King, Phyllis Butow and Ian Olver
Abstract: <h4>Objective</h4>We aimed to compare data quality from online and postal questionnaires and to evaluate the practicality of these different questionnaire modes in a cancer sample.<h4>Methods</h4>Participants in a study investigating the psychosocial sequelae of testicular cancer could choose to complete a postal or online version of the study questionnaire. Data quality was evaluated by assessing sources of nonobservational errors such as participant nonresponse, item nonresponse and sampling bias. Time taken and number of reminders required for questionnaire return were used as indicators of practicality.<h4>Results</h4>Participant nonresponse was significantly higher among participants who chose the postal questionnaire. The proportion of questionnaires with missing items and the mean number of missing items did not differ significantly by mode. A significantly larger proportion of tertiary-educated participants and managers/professionals completed the online questionnaire. There were no significant differences in age, relationship status, employment status, country of birth or language spoken by completion mode. Compared with postal questionnaires, online questionnaires were returned significantly more quickly and required significantly fewer reminders.<h4>Conclusions</h4>These results demonstrate that online questionnaire completion can be offered in a cancer sample without compromising data quality. In fact, data quality from online questionnaires may be superior due to lower rates of participant nonresponse. Investigators should be aware of potential sampling bias created by more highly educated participants and managers/professionals choosing to complete online questionnaires. Besides this issue, online questionnaires offer an efficient method for collecting high-quality data, with faster return and fewer reminders.
Keywords: cancer
online questionnaire
postal questionnaire
data quality
Rights: Copyright © 2011 John Wiley & Sons, Ltd
DOI: 10.1002/pon.2052
Appears in Collections:Aurora harvest
Medicine publications

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