Survey studies of clinicians often face the challenge of achieving sufficient response rates to adequately understand practice realities. We briefly report our experience recruiting a sample of medication for opioid use disorder (MOUD) providers in a southwestern U.S. state (Arizona) to study the impact of temporary federal regulatory changes on their implementation of treatment accommodations to increase access to methadone and buprenorphine during COVID. After multiple and varied recruitment approaches using a modified Dillman method, we achieved a response rate of 5.4%. This was significantly lower than reported rates from other studies of 43-48%. To examine why we struggled to …

Invitation letters to web surveys often contain information on how long it will take to complete a web survey. When the stated length in an invitation of a survey is short, it could help to convince respondents to participate in the survey. When it is long respondents may choose not to participate, and when the actual length is longer than the stated length there may be a risk of dropout. This paper reports on an Randomised Control Trial (RCT) conducted in a cross-sectional survey conducted in the Netherlands. The RCT included different version of the stated length of a survey …