Effect Size in Education Research
An effect size is a standardized, scale-free measure of the magnitude of a difference or relationship — how big an effect is, not just whether it is statistically significant. In education research it is the common currency for reporting intervention impacts and for combining studies in meta-analysis, with the standardized mean difference (Cohen's d, or its bias-corrected form Hedges' g) the most familiar. Effect sizes let researchers compare effects across studies, outcomes, and scales, and translate statistical results into terms practitioners can weigh.
اقرأ الطريقة كاملة
سجّل الدخول بحساب مجاني لقراءة هذا القسم.
خريطة المناهج
محيط المناهج ذات الصلة — اختر عقدةً للاستكشاف.
المصادر
- Cohen, J. (1988). Statistical Power Analysis for the Behavioral Sciences (2nd ed.). Lawrence Erlbaum Associates. ISBN: 9780805802832
- What Works Clearinghouse. (2022). What Works Clearinghouse Procedures and Standards Handbook, Version 5.0. Institute of Education Sciences, U.S. Department of Education. link ↗
كيف تستشهد بهذه الصفحة
ScholarGate. (2026, June 22). Effect Sizes for Quantifying and Synthesizing Educational Interventions. ScholarGate. https://scholargate.app/ar/education/effect-size-education
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- حجم التأثيرإحصاء البحث↔ قارن
- What Works Clearinghouse StandardsEducation↔ قارن