Texas students have made extraordinarily large gains on statewide achievement tests, the Texas Assessment of Academic Skills (TAAS), gains so dramatic that they have been dubbed the "Texas miracle." There is general agreement that these gains are attributable to the high stakes accountability system in Texas, but there is some question…

Compared results on the Texas Assessment of Academic Skills to Texas (TAAS) score changes on the National Assessment of Educational Progress (NAEP). Texas fourth graders did improve significantly more on the NAEP mathematics test than their counterparts nationally, but this gain was smaller than their TAAS gains, and a similar gain was not seen…

Data from the grade 8 and grade 10 science tests of the National Education Longitudinal Study of 1988 (NELS:88) were used to demonstrate that achievement tests are multidimensional and that using psychologically meaningful subscores in national surveys can enhance test validity and usefulness. (SLD)