The challenge of recruiting control groups. An experiment of different recruitment models in the control group of a clinical psychological postal survey

The challenge of recruiting control groups. An experiment of different recruitment models in the... Recruitment of a large and reliable control group is a challenge in psychological survey based research. The effect of recruitment styles and age on response-rate, data quality, and individual differences were investigated in a control group for a postal survey of elderly bereaved people. This study was a direct reaction to the first recruitment attempt that had a 10% response rate. This study consisted of four groups of randomly selected elderly married people (65–81 years) receiving a postal questionnaire measuring depression, social support, coping style, adult attachment, life satisfaction, and personality factors. All groups were exposed to a set of general initiatives (customized introduction letter with university letterhead; self-addressed, prepaid envelope included; personally directed letter signed by the researcher; an assurance of confidentiality). Three groups were exposed to different specific initiatives (short non-sensitive questionnaire, recorded response, and monetary incentive independent of response) to increase the response-rate. The results indicated that general initiatives and information letters apparently increased the response-rate from 10 to 31%. Monetary incentive had the highest response-rate (51%), good data quality, and no sampling bias in individual differences. This method can be highly recommended in future control group recruitment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quality & Quantity Springer Journals

The challenge of recruiting control groups. An experiment of different recruitment models in the control group of a clinical psychological postal survey

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Publisher
Springer Netherlands
Copyright
Copyright © 2011 by Springer Science+Business Media B.V.
Subject
Social Sciences; Methodology of the Social Sciences; Social Sciences, general
ISSN
0033-5177
eISSN
1573-7845
D.O.I.
10.1007/s11135-010-9423-8
Publisher site
See Article on Publisher Site

Abstract

Recruitment of a large and reliable control group is a challenge in psychological survey based research. The effect of recruitment styles and age on response-rate, data quality, and individual differences were investigated in a control group for a postal survey of elderly bereaved people. This study was a direct reaction to the first recruitment attempt that had a 10% response rate. This study consisted of four groups of randomly selected elderly married people (65–81 years) receiving a postal questionnaire measuring depression, social support, coping style, adult attachment, life satisfaction, and personality factors. All groups were exposed to a set of general initiatives (customized introduction letter with university letterhead; self-addressed, prepaid envelope included; personally directed letter signed by the researcher; an assurance of confidentiality). Three groups were exposed to different specific initiatives (short non-sensitive questionnaire, recorded response, and monetary incentive independent of response) to increase the response-rate. The results indicated that general initiatives and information letters apparently increased the response-rate from 10 to 31%. Monetary incentive had the highest response-rate (51%), good data quality, and no sampling bias in individual differences. This method can be highly recommended in future control group recruitment.

Journal

Quality & QuantitySpringer Journals

Published: Jan 6, 2011

References

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