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Download full textWang, Huan; Kim, Dong-In – Online Submission, 2022
A fundamental premise in assessment is that the underlying construct is equivalent across different groups of students and that this structure does not vary over years. The pandemic has potentially impacted opportunity to learn and disrupted the internal structure of assessments in various ways. Past research has suggested that students tended to…
Descriptors: Measurement, Error of Measurement, COVID-19, Pandemics
Tsai, Tsung-Hsun – 1997
The primary objective of this study was to find the smallest sample size for which equating based on a random groups design could be expected to result in less overall equating error than had no equating been conducted. Mean, linear, and equipercentile equating methods were considered. Some of the analyses presented in this paper assumed that the…
Descriptors: Equated Scores, Error of Measurement, Estimation (Mathematics), Sample Size
Kwak, Nohoon; Davenport, Ernest C., Jr.; Davison, Mark L. – 1998
The purposes of this study were to introduce the iterative purification procedure and to compare this with the two-step purification procedure, to compare false positive error rates and the power of five observed score approaches and to identify factors affecting power and false positive rates in each method. This study used 2,400 data sets that…
Descriptors: Ability, Comparative Analysis, Error of Measurement, Estimation (Mathematics)
Lee, Guemin; Lewis, Daniel M. – 2001
The Bookmark Standard Setting Procedure (Lewis, Mitzel, and Green, 1996) is an item-response-theory-based standard setting method that has been widely implemented by state testing programs. The primary purposes of this study were to: (1) estimate standard errors for cutscores that result from Bookmark standard settings under a generalizability…
Descriptors: Cutting Scores, Elementary School Students, Elementary Secondary Education, Error of Measurement
Lee, Guemin; Fitzpatrick, Anne R.; Ito, Kyoko – 2001
School test performance is commonly summarized in terms of the percentage of students at or above a cut score (PAAC) that has been set on a test. Two approaches to estimating the standard errors for school PAACs were examined in this study: conditional standard errors and overall standard errors. The tests used were English language arts and…
Descriptors: Academic Achievement, Cutting Scores, Elementary Education, Elementary School Students
Schulz, Wolfram – Online Submission, 2005
One of the consistent findings of educational research studies is the effect of the students' family socio-economic background on their learning achievement. Consequently, international comparative studies emphasis the role of socio-economic background for determining learning outcomes. In particular, PISA results have been used to describe how…
Descriptors: Measurement Techniques, Foreign Countries, Secondary School Students, Family Environment
