As the animal movement has gained more political authority and public acceptance, it needs better ways to assess and follow its progress—or lack thereof—towards its goals. In this era, in which nonprofits and funding agencies are demanding better measures of effectiveness, the animal movement needs to examine how it looks at the progress it is (or is not) making in gaining better legal protection for animals.
Rowan, A.N., & Rosen, B. (2005). Progress in animal legislation: measurement and assessment. In D.J. Salem & A.N. Rowan (Eds.), The state of the animals III: 2005 (pp.79-94). Washington, DC: Humane Society Press.