A randomised controlled trial to determine the effect on response of including a lottery incentive in health surveys [ISRCTN32203485]

• প্রধান লেখক: Bridge P (Author), Roalfe A (Author), Wilson S (Author), Roberts LM (Author)
• বিন্যাস: গ্রন্থ
• প্রকাশিত: BMC, 2004-11-01T00:00:00Z.
• বিষয়গুলি: article
• অনলাইন ব্যবহার করুন: Connect to this object online.

<p>Abstract</p> <p>Background</p> <p>Postal questionnaires are an economical and simple method of data collection for research purposes but are subject to non-response bias. Several studies have explored the effect of monetary and non-monetary incentives on response. Re...