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Willse, John T.; Goodman, Joshua T.; Allen, Nancy; Klaric, John – Applied Measurement in Education, 2008
The current research demonstrates the effectiveness of using structural equation modeling (SEM) for the investigation of subgroup differences with sparse data designs where not every student takes every item. Simulations were conducted that reflected missing data structures like those encountered in large survey assessment programs (e.g., National…
Descriptors: Structural Equation Models, Simulation, Item Response Theory, Factor Analysis