METHODOLOGY REPORT: 2022 INTERNATIONAL HEALTH POLICY SURVEY OF PRIMARY CARE DOCTORS

Because of the uncertainty surrounding the performance of the sample created for this survey, only a portion of the sample expected to be used for the full study were included in the first wave (n=2,750). [...] The Netherlands The Netherlands conducted the fieldwork via the Dutch Ministry of Health, part of the Radboud University Medical Center. [...] Two experiments were implemented across the three waves: 1) In Wave 1, 50% of the sample was offered a $25 post-incentive in the prenotification mailing and received $10 pre-incentive in the first paper copy mailing while the remaining 50% was sent offered a $40 post-incentive and received a $5 pre-incentive 2) In Waves 2 and 3, a third of the sample was offered a $40 post-incentive in the prenoti. [...] Base Weight: Sampling Weight The sampling weight, also referred to as a “design weight”, adjusts for the specific process of sampling from the frame, and is calculated as the inverse of the selection probability for each sampled record from the frame. [...] Base Weight: Sampling Weight The sampling weight, also referred to as a “design weight”, adjusts for the specific process of sampling from the frame, and is calculated as the inverse of the selection probability for each sampled record from the frame.