Chris Chapman, National Center for Education ... - Duke University

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Planned Changes - ECLS Academic Assessments Item pools were field tested with approximately 1,500 students We reviewed results to select items that scaled unidimensionally within a subject domain using IRT assumptions We also ran DIF analyses to determine if items did not work properly
Increasing Item Response – Example from ECLS How many of the children in each of your classes demonstrated the following reading skills when they started school this year? WRITE NUMBER ON LINE. a. Recognized letters ___ b. Read words ___ c. Read complete sentences ___ Mode: Self administered paper Source: Early Childhood Longitudinal Study – Kindergarten Class of 1998-99 (ECLS-K)
Page 1 and 2: Item Changes in Repeating Studies S
Page 3 and 4: NCES Longitudinal Studies Longitudi
Page 5 and 6: NCES fields data collections on a w
Page 7: Planned Changes - ECLS Academic Ass
Page 11 and 12: Increasing Item Response and Expand
Page 13 and 14: Adding Precision to Items - Watchin
Page 15 and 16: Changing Content Focus of Items - E
Page 17 and 18: Integrating Administrative Data - N
Page 19 and 20: Changing Mode - NHES Example NHES w
Page 22 and 23: Changing Mode - NHES Example
Page 24 and 25: Changing Mode - NHES Example NHES F

Chris Chapman, National Center for Education ... - Duke University

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