Describes the national sample design for the fifth and sixth rounds of the surveys.

This working paper presents methodological findings from the latest round of the Health Tracking Household Survey, which added a cell phone sample to the existing landline sample of random telephone numbers to increase the coverage of the U.S. population.

Described the methods used to design and implement the list frame and random digit dial (RDD) surveys that were conducted for this evaluation. The questionnaire, sample design, response rates, weighting methods, and facts about the actual conduct of the surveys are included in this report.

This working paper presents methodological findings from the latest round of the Health Tracking Household Survey, which added a cell phone sample to the existing landline sample of random telephone numbers to increase the coverage of the U.S. population.