KR-21 reliability and its extension (coefficient [alpha]) gives the reliability estimate of test scores under the assumption of tau-equivalent forms. KR-21 reliability gives the reliability estimate for summed scores for dichotomous items when items are randomly sampled from an infinite pool of similar items (randomly parallel forms). The article…

Due to budgetary concerns, the FDOE restructured the Writing portion of the FCAT assessment program for 2010. Among the changes was a difference in how the writing essays were scored. In the past, two people independently judged each essay and each assigned a score from 1 to 6. In the event of a disagreement between judges, the average of the…

The Lithuanian Informatics Olympiad is a problem solving contest for high school students. The work of each contestant is evaluated in terms of several criteria, where each criterion is measured according to its own scale (but the same scale for each contestant). Several jury members are involved in the evaluation. This paper analyses the problem…