Research Design and Analysis

Abt SRBI’s Advanced Methods and Sampling Group has a staff of nationally recognized sampling and statistical experts known for their ability to meet clients’ needs for reliable and representative samples. The group works closely with all Abt SRBI Practice Groups.

We are leaders in developing cost-effective and innovative samples that meet the most demanding requirements. Staff members regularly publish in major journals and present at major professional conferences, such as the American Statistical Association and the American Association for Public Opinion Research. Several serve on high-level professional panels, such as the AAPOR Cell Phone Task Force.

Our expertise includes design of the following types of samples:
  • Address-based samples (ABS)
  • Face-to-face area and national probability samples
  • Dual-frame RDD/cell frame samples, including national, state, and small area
  • Hard-to-reach populations, including multi-frame samples
  • Specialized samples, including health care providers, educators, students, business decision makers, and program participants
  • Randomized trials
  • Complex sample designs, including weighting and variance estimation
  • Statistical modeling
  • Non-response bias studies