کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6840823 1434802 2017 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A self-reference problem in test score normalization
ترجمه فارسی عنوان
یک مشکل خود ارزیابی در نرمال نمره آزمون
موضوعات مرتبط
علوم انسانی و اجتماعی اقتصاد، اقتصادسنجی و امور مالی اقتصاد و اقتصادسنجی
چکیده انگلیسی
It is considered standard practice to transform IRT-scaled test scores into standard normal variables for regression analysis in order to enable comparison with other research whose test scores are similarly transformed. This paper calls this practice into question. I show that these transformations can potentially result in radically different estimates of regression parameters due to differences in sample composition. Regression coefficient comparisons between different samples that use z-standardized test scores is only possible if the samples are considered to be random draws from the same population. I outline several different methods to deal with this problem and the caveats attached to each.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Economics of Education Review - Volume 61, December 2017, Pages 79-84
نویسندگان
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