In this study we evaluated the stability of item parameters and student scores, using the pre-equated (pre-pandemic) parameters from Spring 2019 and post-equated (post-pandemic) parameters from Spring 2021 in two calibration and equating designs related to item parameter treatment: re-estimating all anchor parameters (Design 1) and holding the…

A study was carried on to analyze a data set in order to determine whether evidence can be found to support or refute the unitary factor hypothesis of language proficiency, which asserts that there is a single language dimension or factor underlying different language tests. The subjects were 50 advanced adult learners of English as a second…

A statistical model is presented for analyzing the results of group conversation tests in English, developed in a Finnish university study from 1977 to 1981. The model is illustrated with the findings from the study. In this study, estimates of percentile curves for the number of errors are of greater interest than the mean regression line. It was…

This study was conducted to evaluate the tests developed by elementary foreign language teachers of French, Japanese, and Spanish in a school district in South Carolina. The tests were designed to determine the level of end-of-year student learning and to provide a basis for evaluating the curriculum of each of the three languages. The French and…