एक प्रयोग में छात्रों को उपचार समूह चुनने दिया गया। इससे किस प्रकार की समस्या उत्पन्न हो सकती है?
In an experiment students were allowed to choose their treatment group. What problem may result?
Explanation opens after your attempt
Correct Answer
A. स्वयं चयन पक्षपातSelf-selection bias
Concept
Students choosing groups may already differ in important ways. Understand why random assignment is needed.
Why this answer is correct
The correct answer is A. स्वयं चयन पक्षपात / Self-selection bias. Students choosing groups may already differ in important ways. Understand why random assignment is needed.
Exam Tip
जो छात्र समूह चुनते हैं उनमें पहले से अलग विशेषताएं हो सकती हैं। परीक्षा में यादृच्छिक आवंटन की आवश्यकता समझें।
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