A central question we will address is: how do evaluation approaches under cost and time constraints affect the validity of the evaluation design and the conclusions derived from the analysis? What are acceptable compromises that permit valid findings and what are the minimum methodological requirements without which a study can no longer be considered a quality impact evaluation? Section 2 considers a range of options for simplifying the design of...
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تنزيل الملفات
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نسخة رسمية من الوثيقة (قد تضم توقيعات، الخ)
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