Dual-Frame Sample Sizes (RDD and Cell) for Future Minnesota Health Access Surveys

• Activity Number: 159
• Type: Topic Contributed
• Date/Time: Monday, August 2, 2010 : 10:30 AM to 12:20 PM
• Sponsor: Section on Survey Research Methods
• Author(s): Steven Pedlow*+ and Kanru Xia and Michael Davern
• Companies: NORC and NORC and NORC
• Keywords: Sample Efficiency ; Design Effects ; Cell Phone ; Landline ; Screening

Abstract

The Minnesota Health Access Survey (MNHA), a large-scale health insurance survey conducted jointly by the Minnesota Department of Health and the University of Minnesota, tracks health insurance coverage and access in Minnesota. The 2009 round of the MNHA is the first to use data collected from a cell phone sample as well as a random-digit-dial (RDD) sample. This paper explores the trade-offs between screening cell samples based on landline and cell phone usage patterns and accepting all cell phone users as respondents. After concluding that screening is the optimal solution, the paper then explores the optimal percentages of MNHA interviews that should be attempted from the landline and cell phone frames.