Lestina, Diane C.; Greene, Michael; Voas, Robert B.; … - In: Evaluation Review 23 (1999) 1, pp. 28-46
This article describes the multistage sampling system employed in the 1996 national roadside survey and compares it to the sampling methods employed in the two prior surveys in 1973 and 1986. Also described are the data collection procedures at the selected sites, the breath-test devices used to...