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Bursal, Murat; Yetis, Serap – International Journal of Research in Education and Science, 2020
This survey design study was designed to test whether the graph skills and affective states of middle school students about graphs differ by their gender, grade level, and graph types (line, bar, and pie). The data collection instruments consisted of two scales developed by the authors and a Graph Skills Test, which consisted of graph questions…
Descriptors: Middle School Students, Grade 7, Grade 8, Graphs
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Yang, Ji Seung; Zheng, Xiaying – Journal of Educational and Behavioral Statistics, 2018
The purpose of this article is to introduce and review the capability and performance of the Stata item response theory (IRT) package that is available from Stata v.14, 2015. Using a simulated data set and a publicly available item response data set extracted from Programme of International Student Assessment, we review the IRT package from…
Descriptors: Item Response Theory, Item Analysis, Computer Software, Statistical Analysis
OECD Publishing, 2017
Early childhood education and care (ECEC) can help lay the foundations for future skills development, well-being and learning. Having timely, reliable and comparable international information is essential to help countries improve their ECEC services and systems. For over 15 years, the OECD has been conducting policy analysis and gathering new…
Descriptors: Educational Indicators, Early Childhood Education, Educational Policy, Policy Analysis