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Peer reviewedCheong, Yuk Fai; Fotiu, Randall P.; Raudenbush, Stephen W. – Journal of Educational and Behavioral Statistics, 2001
Studied the efficiency and robustness of alternative estimators of regression coefficients for three-level data. A simulation study shows that, as expected, the hierarchical model analyses produced more efficient point estimates than did analyses that ignored the covariance structure in the data, even when the normality assumption was violated.…
Descriptors: Estimation (Mathematics), Mathematical Models, Regression (Statistics), Robustness (Statistics)
