کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
891161 914026 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spearman’s Law of Diminishing Returns and national ability
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
پیش نمایش صفحه اول مقاله
Spearman’s Law of Diminishing Returns and national ability
چکیده انگلیسی


• National ability was measured using international standardized tests (e.g., PISA).
• National G loadings of tests were lower for higher ability nations.
• Spearman’s Law of Diminishing Returns was supported.
• Results imply that the predictive validity of tests may be lower for higher ability nations.

This research examined Spearman’s Law of Diminishing Returns (SLODR) using national ability as the unit of analysis. National ability was estimated using international standardized tests such as the Programme for International Student Assessment (PISA), Trends in International Mathematics and Science Study (TIMSS), and Progress in International Reading Literacy Study (PIRLS). Factor analysis estimated the national G loadings of tests for high and low ability nations. Consistent with SLODR, the G loadings of tests were lower for higher ability nations. The pattern was confirmed after correcting for school attendance and age biases. Because a test’s g loading is directly related to its predictive validity (correlation with outcomes), our results imply that the predictive validity of tests may be lower for higher ability nations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Personality and Individual Differences - Volume 55, Issue 4, August 2013, Pages 406–410
نویسندگان
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