Comparing Rubric Assessments to Standardized Tests

Here's a quote from the lead article in the new issue of AAC&U News.

When the CLA results arrived eight months later, the UC team compared the outcomes of the two assessments. “We found no statistically significant correlation between the CLA scores and the portfolio scores,” Escoe says. “In some ways, it’s a disappointing finding. If we’d found a correlation, we could tell faculty that the CLA, as an instrument, is measuring the same things that we value and that the CLA can be embedded in a course. But that didn’t happen.” There were many factors that may have contributed to the lack of correlation, she says, including the fact that the CLA is timed, while the rubric assignments are not; and that the rubric scores were diagnostic and included specific feedback, while the CLA awarded points “in a black box”: if a student referred to a specific piece of evidence in a critical-thinking question, he or she simply received one point. In addition, she says, faculty members may have had exceptionally high expectations of their honors students and assessed the e-portfolios with those high expectations in mind—leading to results that would not correlate to a computer-scored test. In the end, Escoe says, the two assessments are both useful, but for different things. The CLA can provide broad institutional data that satisfies VSA requirements, while rubric-based assessment provides better information to facilitate continuous program improvement.

And now for the rest of the story...