DOWNLOAD ~ Does Size Matter? Salience of Follow-up Payments in Drug Abuse Research. ~ by IRB: Ethics & Human Research ~ eBook PDF Kindle ePub Free
eBook details
- Title: Does Size Matter? Salience of Follow-up Payments in Drug Abuse Research.
- Author : IRB: Ethics & Human Research
- Release Date : January 01, 2007
- Genre: Health & Fitness,Books,Health, Mind & Body,
- Pages : * pages
- Size : 202 KB
Description
Clinical outcomes studies frequently provide payment incentives to research participants for completing follow-up assessments. The payments are intended to compensate participants for their time and effort and to encourage those who might otherwise be difficult to relocate to stay in contact with the research team. Maintaining adequate follow-up rates is of particular concern in drug abuse research studies, which are often hindered by substantial attrition of research subjects prior to follow-up assessments. Dozens of drug abuse treatment outcome studies report average attrition rates ranging from 20% at six months postadmission to 35% at 12 months postadmission to 65% at 36 months postadmission. (1) A meta-analysis of 85 drug abuse prevention studies similarly reported average attrition rates ranging from 27% at 12 months postadmission to 33% at 36 months postadmission. (2) Importantly, these reviews and meta-analyses only included published studies, and it is reasonable to assume that many studies with lower follow-up rates were never published for the very reason that their follow-up rates were deemed to be unacceptable. Indeed, follow-up rates in large-scale community evaluations of drug abuse treatment programs often fall well below an acceptable threshold of 70% and have been as low as 47%. (3)
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