Test-Based Accountability and Student Achievement: An Investigation of Differential Performance on NAEP and State Assessments

Brian A. Jacob

No 12817, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: This paper explores the phenomenon referred to as test score inflation, which occurs when achievement gains on "high-stakes" exams outpace improvements on "low-stakes" tests. The first part of the paper documents the extent to which student performance trends on state assessments differ from those on the National Assessment of Educational Progress (NAEP). I find evidence of considerable test score inflation in several different states, including those with quite different state testing systems. The second part of the paper is a case study of Texas that uses detailed item-level data from the Texas Assessment of Academic Skills (TAAS) and the NAEP to explore why performance trends differed across these exams during the 1990s. I find that the differential improvement on the TAAS cannot be explained by several important differences across the exams (e.g., the NAEP includes open-response items, many NAEP multiple-choice items require/permit the use of calculators, rulers, protractors or other manipulative). I find that skill and format differences across exams explain the disproportionate improvement in the TAAS for fourth graders, although these differences cannot explain the time trends for eighth graders.

JEL-codes: I2 (search for similar items in EconPapers)
Date: 2007-01
New Economics Papers: this item is included in nep-edu and nep-ure
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Citations: View citations in EconPapers (9)

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