Lafond, Colette; Toomey, Traci L.; Rothstein, Catherine; … - In: Evaluation Review 24 (2000) 1, pp. 92-101
The purpose of this article is to evaluate the accuracy of three methods used to obtain policy data: (a) government agency surveys, (b) secondary sources, and (c) historical legal research. Changes in laws were identified for all 48 contiguous states for the period 1968 to 1994. Legal research...