... Most countries present curricular intentions in curriculum guides, programs of study, textbooks, and similar documents. Comparison of these instruments has proven useful in describing differences in the opportunities afforded children to learn school subjects (Schmidt, McKnight, Valverde, Houang, & Wiley, 1997; Schmidt, Raizen, Britton, Bianchi, & Wolfe, 1997; Valverde, Bianchi, Houang, Schmidt, & Wolfe, 2002), in explaining differences in mean educational achievement across educational systems (McKnight & Valverde, 1999; Schmidt et al., 2001 ), in understanding the governance of curriculum (Benavot, Cha, Kamens, Meyer, & Wong, 1991; Resnick, Nolan, & Resnick, 1995; Valverde, 2000; Valverde & Schmidt, 2000 ), and in understanding the contribution of curriculum policies to economic growth (Benavot, 1992). High-stakes examinations are also instruments that help scholars understand the goals of educational systems. ...