Question
प्राथमिक और द्वितीयक आँकड़ों में अन्तर स्पष्ट कीजिए।
Answer :
Word Count : 313
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प्राथमिक और द्वितीयक आँकड़े शिक्षा अनुसंधान और अन्य सामाजिक विज्ञानों में उपयोग होने वाले दो महत्वपूर्ण प्रकार के आँकड़े हैं। प्राथमिक आँकड़े वे होते हैं जिन्हें शोधकर्ता स्वयं प्रत्यक्ष स्रोत से एकत्र करता है। इसके लिए साक्षात्कार, प्रश्नावली, अवलोकन, प्रयोग या सर्वेक्षण जैसी विधियों का उपयोग किया जाता है। प्राथमिक आँकड़ों का मुख्य लाभ यह है कि ये अधिक विश्वसनीय और नवीन होते
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