Victor L. Willson; Thomas Kellow
Description:
The conclusions by Bolon (2001) based on the relationship between per capita income and school mean grade 10 mathematics scores in Massachusetts and on instability in year-to-year mean school scores are criticized by us. Our concerns focus on the uninterpretable covariation of economic condition with test performance and the limitations in interpreting cross-time variability. We agree with Bolon's conclusions but consider the methodology employed inadequate to support them. We suggest alternative requirements and discuss our own previous efforts in this area.