Developing Indicators of Educational Contexts in Timss
نویسندگان
چکیده
TIMSS collects a vast amount of information aimed to provide a context to better understand education systems around the globe. This paper discusses how this background information can be reported using three real examples from the 1999 assessment. These examples illustrate the main concepts and steps involved in reporting background data, while presenting methods and statistical techniques that can be used for developing indices. Important criteria to evaluate the overall quality of the measures are introduced, paying special attention to their validity and reliability. The advantages of using indices are discussed both from a conceptual and a measurement perspective.
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