As part of a disability services research project, an MPHstudent is analyzing data from a special survey conducted inMissouri. This survey was adapted from the Behavioral Risk FactorSurveillance System (BRFSS). The survey was a random digit dialtelephone survey conducted in six Missouri counties between 2010and 2012. The sample consisted of 3,343 adults: 1,380 from ruraland 1,963 from nonrural areas. The survey collected information onresidential information and the presence of a disability.Disability was defined as “activities are limited in any waybecause of an impairment or health problem.” The studenthypothesized that disability would be increased in rural areas.
- What kind of study is this and why?
- What are the main concerns to make the causal inference basedon the data from this study?