TY - JOUR
AU - Thompson, R.
AB - SummaryLikelihood ratio tests for fixed model terms are proposed for the analysis of linear mixed models when using residual maximum likelihood estimation. Bartlett-type adjustments, using an approximate decomposition of the data, are developed for the test statistics. A simulation study is used to compare properties of the test statistics proposed, with or without adjustment, with a Wald test. A proposed test statistic constructed by dropping fixed terms from the full fixed model is shown to give a better approximation to the asymptotic χ2-distribution than the Wald test for small data sets. Bartlett adjustment is shown to improve the χ2-approximation for the proposed tests substantially.
TI - Likelihood Ratio Tests for Fixed Model Terms using Residual Maximum Likelihood
JF - Journal of the Royal Statistical Society Series B (Statistical Methodology)
DO - 10.1111/1467-9868.00092
DA - 2002-01-06
UR - https://www.deepdyve.com/lp/oxford-university-press/likelihood-ratio-tests-for-fixed-model-terms-using-residual-maximum-aEDABPdQI6
SP - 701
EP - 714
VL - 59
IS - 3
DP - DeepDyve
ER -