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n-Level SEM With Small to Moderate Samples

Sat, April 23, 9:45 to 11:15am PDT (9:45 to 11:15am PDT), AERA Virtual Poster Rooms, AERA Virtual Poster Room 1

Abstract

A practical limitation of SEM is how to effectively estimate model parameters with typical sample sizes when there are many levels of (potentially disparate) nesting. We develop a method of moments corrected maximum likelihood estimator for n-level SEMs (SEMs with an arbitrary number of levels of nesting) that is well-suited to the types of small to moderate sample sizes typically seen in education. We probe the consistency, variability and convergence of the estimator with small/moderate n-level samples. The estimator emerges as a practical alternative to conventional full information estimators because it often outperforms them in small/moderate n-level samples. The results are implemented in the [BLINDED] R package and illustrated through an n-level teacher development example.

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