The study evaluated the convergent validity of the PEAK-E-PA and two common assessments of language development used in educational and clinical settings: the ABLLS-R and the TOLD-I:4. The PEAK-E-PA provides a measure of a participant's ability to derive arbitrary stimulus relations, and may therefore provide a more complex analysis of language…

Purpose: Many language tests use different versions that are not statistically linked or do not have a developmental scaled score. The current article illustrates the problems of scores that are not linked or equated, followed by a statistical model to derive a developmental scaled score. Method: Using an accelerated cohort design of 890 students…

The purpose of this study was to assess the basic psychometric properties of a progress-monitoring tool designed to measure narrative discourse skills in school-age children with language impairments (LI). A sample of 109 children with LI between the ages of 5 years 7 months and 9 years 9 months completed the "Test of Narrative Language"…

Universal screening of very early school-age children (age 4-7 years) is important for early identification of learning problems that may require enhanced learning opportunity. In this context, use of standardized instruments is critical to obtain valid, reliable, and comparable assessment outcomes. A wide variety of standardized instruments is…