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Questions and Answers
What is the primary purpose of the questionnaire format shown?
What is the primary purpose of the questionnaire format shown?
Which of the following categories is NOT listed as an option for the nature of ownership of an organization?
Which of the following categories is NOT listed as an option for the nature of ownership of an organization?
What information is requested regarding the job level within an organization?
What information is requested regarding the job level within an organization?
What type of activities does the questionnaire inquire about regarding the organization?
What type of activities does the questionnaire inquire about regarding the organization?
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What scale is used to assess the scale of operation of an organization?
What scale is used to assess the scale of operation of an organization?
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What type of organization is categorized as 'Any other, Specify' in the ownership options?
What type of organization is categorized as 'Any other, Specify' in the ownership options?
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Which section of the questionnaire asks for the participant's designation?
Which section of the questionnaire asks for the participant's designation?
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In the context of the questionnaire, what does the term 'top level' refer to?
In the context of the questionnaire, what does the term 'top level' refer to?
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What is primary data?
What is primary data?
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Which method involves observing a phenomenon without asking questions?
Which method involves observing a phenomenon without asking questions?
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What is a common drawback of the observation method?
What is a common drawback of the observation method?
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What best describes the questionnaire method of data collection?
What best describes the questionnaire method of data collection?
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What is a significant advantage of personal interviews over mail questionnaires?
What is a significant advantage of personal interviews over mail questionnaires?
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Which method is likely to be the least costly for collecting primary data?
Which method is likely to be the least costly for collecting primary data?
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When is secondary data typically collected?
When is secondary data typically collected?
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What can be a disadvantage of the mail questionnaire method?
What can be a disadvantage of the mail questionnaire method?
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What is defined as data collected by the investigator himself?
What is defined as data collected by the investigator himself?
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Which method is most commonly used for primary data collection?
Which method is most commonly used for primary data collection?
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What is the term for a collection that includes every item in a population?
What is the term for a collection that includes every item in a population?
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Which of the following describes data compiled by someone else?
Which of the following describes data compiled by someone else?
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Which is NOT a characteristic of a good questionnaire?
Which is NOT a characteristic of a good questionnaire?
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What is the term for any group of measurements selected from a population?
What is the term for any group of measurements selected from a population?
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Which of the following statements is true about primary and secondary data?
Which of the following statements is true about primary and secondary data?
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Which aspect should be included when drafting a useful questionnaire?
Which aspect should be included when drafting a useful questionnaire?
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What is the purpose of pre-testing a questionnaire?
What is the purpose of pre-testing a questionnaire?
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Which term is used to refer to the pre-testing of a questionnaire?
Which term is used to refer to the pre-testing of a questionnaire?
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What should the editing of primary data ensure?
What should the editing of primary data ensure?
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Which day and time slot is NOT listed for attending contact sessions?
Which day and time slot is NOT listed for attending contact sessions?
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What should be done if vital questions in a questionnaire remain unanswered?
What should be done if vital questions in a questionnaire remain unanswered?
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What action can be taken if some questions in the questionnaire are found irrelevant?
What action can be taken if some questions in the questionnaire are found irrelevant?
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Which scenario demonstrates a contradiction in questionnaire responses?
Which scenario demonstrates a contradiction in questionnaire responses?
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What could be a reasonable outcome of properly testing and revising a questionnaire?
What could be a reasonable outcome of properly testing and revising a questionnaire?
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What is the most challenging task for an investigator when analyzing questionnaire data?
What is the most challenging task for an investigator when analyzing questionnaire data?
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Why is homogeneity important when designing questionnaire questions?
Why is homogeneity important when designing questionnaire questions?
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What is considered a key aspect of the data editing process?
What is considered a key aspect of the data editing process?
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Which factor is NOT emphasized regarding the pre-testing of a questionnaire?
Which factor is NOT emphasized regarding the pre-testing of a questionnaire?
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Which of the following best describes the two broad categories of secondary data sources?
Which of the following best describes the two broad categories of secondary data sources?
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How can inaccuracies in questionnaire data be minimized?
How can inaccuracies in questionnaire data be minimized?
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What issue may arise from an ambiguous question regarding income in a questionnaire?
What issue may arise from an ambiguous question regarding income in a questionnaire?
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What consequence may result from allowing inaccuracies in questionnaire responses?
What consequence may result from allowing inaccuracies in questionnaire responses?
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Study Notes
Primary Data
- Data collected firsthand by the investigator or their agent is called primary data.
- Primary data collection methods include observation and questionnaires.
Observation Method
- The investigator observes the phenomenon under consideration and records the relevant data.
- Humans or machines can perform observations.
- This method can be prone to errors due to observer limitations.
Questionnaire Method
- The investigator prepares a list of questions and records the responses.
- This method is widely used due to limitations of the observation method.
- Questionnaires can be administered through personal interviews, mail, or telephone.
Personal Interviews
- The interviewer meets with the respondent face-to-face and records their answers.
- This method generally produces more accurate and reliable information.
- It is time-consuming and costly, especially with a large and dispersed respondent pool.
Mail Questionnaire
- Respondents receive a list of questions by mail and return their responses.
- Questionnaires can be distributed through other means like product attachments or newspapers.
- The questionnaire format includes sections on:
- Background information (name, organization, position, job level)
- Organizational details (ownership, activities, scale of operation, weekly holidays)
- Preferences for contact sessions (day and time)
- Market survey questions (e.g., assessing demand for a new drug).
Pre-Testing the Questionnaire
- Pre-testing involves conducting a pilot survey before the main survey.
- This helps identify problems, inconsistencies, repetitions, and unnecessary questions.
- Allow for revisions and improvements based on the pilot survey results.
Editing Primary Data
- Collected data requires editing to ensure completeness, consistency, accuracy, and homogeneity.
- Completeness: Each questionnaire should be complete, with all questions answered.
- Consistency: Check for contradictory answers and resolve inconsistencies.
- Accuracy: Verify the information provided by respondents for accuracy.
- Homogeneity: Ensure all respondents understand questions in the same way, especially those with ambiguous terms.
Secondary Data
- Data collected by someone other than the user is considered secondary data.
- Sources of secondary data include published and unpublished materials.
- Examples of published sources include statistical reports from national or international organizations.
Key Terms
- Census: a complete enumeration of all items in a population.
- Population: the collection of items under investigation.
- Primary Data: data collected by the investigator.
- Questionnaire: a form used to gather answers to questions.
- Sample: a subset of measurements selected from a population.
- Secondary Data: data collected by someone other than the user.
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Description
This quiz explores the various methods of primary data collection, including observation and questionnaires. Learn about the strengths and limitations of each method, such as personal interviews and mail questionnaires. Test your understanding of how data is gathered firsthand by investigators.