In this article, we extend Liao's test for across-group comparisons of the fixed effects from the generalized linear model to the fixed and random effects of the generalized linear mixed model (GLMM). Using as our basis the Wald statistic, we developed an asymptotic test statistic for across-group comparisons of these effects. The test can be…

In the new millennium, international interest has developed on the trouble of boys, both in and out of school, with a particular focus on boys' deficiencies in literacy skills. This interest has prompted research and action plans in Australia, Great Britain, the United States, and to a more regionalized or provincial capacity within Canada, such…