Data Collection

What is the primary purpose of data collection in research?

• To gather information to answer research questions
• To manipulate data for desired results
• To reduce research costs
• To avoid using other researchers' findings

Which of the following is NOT a common consequence of inaccurate data collection?

• Accurate conclusions
• Inability to answer research questions
• Misleading other researchers
• Compromising public policy decisions

What is one major advantage of probability sampling?

• It reduces sampling bias
• It ensures every individual is included
• It eliminates the need for a hypothesis
• It only works for small populations

Which data collection method is best for gathering opinions from a large group of people?

• Surveys or questionnaires
• Structured observations
• Document reviews
• Personal interviews

Why is maintaining data integrity important in research?

• To ensure results are reliable and valid
• To make the research process longer
• To reduce research funding
• To allow researchers to change data easily

What should be done first when finalizing collected raw data?

• Record data on paper first
• Delete unnecessary data
• Directly input data into analysis software
• Discard incomplete responses

Which type of sampling divides the population into subgroups before selecting participants?

• Stratified random sampling
• Simple random sampling
• Systematic sampling
• Cluster sampling

What is the main disadvantage of using mail questionnaires?

• It has low response rates
• It ensures immediate feedback
• It provides the fastest results
• It is cheaper than other methods

What is a key characteristic of structured observations?

• It focuses on specific behaviors or events
• It collects data from interviews
• It only uses qualitative data
• It is unstructured and flexible

What is the role of quality assurance in data collection?

• To prevent problems before data collection begins
• To fix errors after data is collected
• To analyze data trends
• To replace missing data