chapter  5
24 Pages

Developing Computerized Adaptive Tests for School Children

Portland Public Schools (PPS) has a long heritage of trying to improve mea­ surement for the students in the district. Since 1977, Portland has used tests drawn from large item pools calibrated to an item response (IRT) the­ ory model (Hambleton & Swaminathan, 1985; Lord, 1980; Lord & Novick, 1968). These tests are designed as functional level tests (Hathaway, 1980), which match the difficulty of a test that a student takes to the student’s past performance. This paper-and-pencil testing system allows students to take test questions that are challenging, but not frustrating.