If a survey is conducted telephonically, which among the following statements is true?यदि कोई सर्वेक्षण टेलिफ़ोन के माध्यम से कराया जाता है तो निम्नलिखित में से कौन सा कथन सही है?
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Correct answer: C. It reduces the cost of data collectionइससे दत्त संग्रहण की लागत घट जाती है।
Explanation
A telephone survey removes travel and field-staff expenses and covers scattered respondents quickly, so its chief advantage is that it reduces the cost of data collection. It does not improve data quality or validity (no rapport, no non-verbal cues, no observation), and respondents are often less comfortable on a phone call than face to face.टेलिफ़ोन सर्वेक्षण में यात्रा और क्षेत्र-कर्मियों का व्यय बच जाता है और बिखरे हुए उत्तरदाताओं तक शीघ्र पहुँच होती है, अतः इसका मुख्य लाभ यह है कि दत्त संग्रहण की लागत घट जाती है। इससे आँकड़ों की गुणवत्ता या विधिमान्यता नहीं बढ़ती (न तालमेल, न अशाब्दिक संकेत, न प्रेक्षण), और प्रतिभागी प्रायः आमने-सामने की तुलना में फ़ोन पर कम सहज होते हैं।More Research Aptitude questions
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