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selective reporting MCQ Questions for Class 9

selective reporting se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

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3 questions tagged with selective reporting.

Question 1/3 Expert Science Exploration: Entering the World of Secondary Science Hypothesis and experimentation Class 9 Level 8

एक छात्र ने प्रयोग की विधि परिणाम देखने के बाद बदल दी और केवल बेहतर परिणाम वाली विधि बताई। इससे क्या समस्या होती है?

A student changed the experimental method after viewing the results and reported only the method giving better results. What problem does this create?

Explanation opens after your attempt
Correct Answer

D. परिणाम आधारित विधि चयन पक्षपातOutcome-based method selection bias

Step 1

Concept

Choosing a method after seeing results can inflate apparent support. Understand the importance of a preplanned method.

Step 2

Why this answer is correct

The correct answer is D. परिणाम आधारित विधि चयन पक्षपात / Outcome-based method selection bias. Choosing a method after seeing results can inflate apparent support. Understand the importance of a preplanned method.

Step 3

Exam Tip

परिणाम देखकर विधि चुनना झूठा समर्थन बढ़ा सकता है। परीक्षा में पहले से निर्धारित विधि का महत्व समझें।

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Question 2/3 Hard Science Exploration: Entering the World of Secondary Science Hypothesis and experimentation Class 9 Level 8

एक छात्र ने निष्कर्ष से मेल न खाने वाले परिणाम मिटा दिए। इससे प्रयोग पर क्या प्रभाव पड़ेगा?

A student deleted results that did not match the conclusion. How will this affect the experiment?

Explanation opens after your attempt
Correct Answer

A. डेटा पक्षपाती और अविश्वसनीय हो जाएगाThe data will become biased and unreliable

Step 1

Concept

Removing contradictory results prevents an objective representation of evidence. In exams retain all valid results.

Step 2

Why this answer is correct

The correct answer is A. डेटा पक्षपाती और अविश्वसनीय हो जाएगा / The data will become biased and unreliable. Removing contradictory results prevents an objective representation of evidence. In exams retain all valid results.

Step 3

Exam Tip

विरोधी परिणाम हटाने से प्रमाण का निष्पक्ष प्रतिनिधित्व नहीं होता। परीक्षा में सभी वैध परिणाम सुरक्षित रखें।

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Question 3/3 Expert Science Exploration: Entering the World of Secondary Science Nature and meaning of science Class 9 Level 3

एक शोधकर्ता अनेक उपसमूहों का विश्लेषण करता है और केवल एक असामान्य परिणाम प्रकाशित करता है। कौन सी चिंता उचित है?

A researcher analyses many subgroups and publishes only one unusual result. Which concern is appropriate?

Explanation opens after your attempt
Correct Answer

A. संयोग से मिला परिणाम चुना गया हो सकता हैA chance result may have been selected

Step 1

Concept

With many analyses some unusual findings may occur by chance. Look for predefined subgroups and independent confirmation.

Step 2

Why this answer is correct

The correct answer is A. संयोग से मिला परिणाम चुना गया हो सकता है / A chance result may have been selected. With many analyses some unusual findings may occur by chance. Look for predefined subgroups and independent confirmation.

Step 3

Exam Tip

बहुत से विश्लेषण में कुछ असामान्य परिणाम संयोग से मिल सकते हैं। परीक्षा में पूर्व निर्धारित उपसमूह और स्वतंत्र पुष्टि देखें।

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