Non-Response Error
Non-response error in data collection occurs when:
- The researcher uses the wrong formula
- An interviewer cannot contact a listed person or the person refuses to respond — Correct Answer
- The questionnaire has too many questions
- Random sampling is not used
Explanation:
Correct Answer Explanation
Non-response error occurs if an interviewer is unable to contact a person listed in the sample or a person refuses to respond. In this case, the sample observation may not be representative.
Key Points:
- Non-response is a major issue in mailing questionnaire surveys — low return rates.
- It leads to unrepresentative samples — results may be skewed.
- It is a type of non-sampling error — more serious and harder to correct than sampling error.
- Strategies to reduce non-response: follow-up reminders, incentives, shorter questionnaires.
📚 About this Topic — CH-2: Collection of Data
This multiple choice question is from CH-2: Collection of Data, NCERT Books, Statistics for Economics. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from CH-2: Collection of Data to strengthen your preparation.
