Despite the call for an argument-based approach to validity over 25 years ago, few examples exist in the published literature. One possible explanation for this outcome is that the complexity of the argument-based approach makes implementation difficult. To counter this claim, we propose that the Assessment Triangle can serve as the overarching…

Portfolios are the centerpiece of Vermont's statewide assessment program in mathematics. Portfolio scores in the first two years were not reliable enough to permit the reporting of student-level results, but increasing the number of readers or the number of portfolio pieces is not operationally feasible. (SLD)

The temporal stability and intertask consistency of an eighth-grade mathematics performance assessment and how task similarity affects the ability to generalize results of the assessments were studied with results from 101 eighth graders. Results support the suggestion that large-scale performance assessments be used with considerable caution…