Item response tree (IRTree) models are a flexible framework to control self-reported trait measurements for response styles. To this end, IRTree models decompose the responses to rating items into sub-decisions, which are assumed to be made on the basis of either the trait being measured or a response style, whereby the effects of such person…

The purpose of this study was to identify kindergarteners at risk for language and reading disorders and to determine predictors. A representative sample of 311 kindergarteners in general education classrooms in the U.S. Midwest were assessed with the Well Screening in fall, winter, and spring. Groups were compared using analysis of variance…