1) Which data collection method is best for gathering opinions from a large group of people using written questions? a) An experiment b) an observation c) a case study d) a survey 2) Which method involves a researcher directly asking questions to a participant and recording their responses? a) interviews b) surveys c) experiments d) observations 3) Which data collection method involves watching and recording behaviors without interacting with participants? a) survey b) observation c) interview d) experiment 4) Which method is used when researchers change something to see how it affects the outcome under controlled conditions? a) survey b) case study c) observation d) experiment 5) Which method involves a detailed investigation of a single person or a small group to understand a complex issue? a) case study b) survey c) experiment d) observation 6) What is a common challenge when using surveys to collect data? a) response bias b) high cost c) limited audience d) no standard format 7) What is a possible problem when conducting interviews for data collection? a) limited sample size b) no flexibility c) no need for recording d) interviewer bias 8) What is a challenge researchers might face when collecting data through observation? a) limited sample size b) observer bias c) no firsthand information d) no need for notes 9) What is a disadvantage of using experiments to collect data? a) artificial settings may limit generalizability b) no control over variables c) no way to measure outcomes d) no ethical concerns 10) What is an advantage of using case studies in research? a) quick results b) large sample size c) standardized questions d) rich, detailed information 11) A company wants to know what customers think about a new product by sending out a questionnaire. Which method are they using? a) interview b) observation c) survey d) experiment 12) Researchers want to test a new medicine by giving it to one group and not to another, then comparing results. Which method is this? a) survey b) experiment c) observation d) case study 13) 13. A scientist spends time in a community, watching how people interact and taking notes. Which data collection method is used? a) survey b) observation c) interview d) experiment 14) A researcher wants to learn about someone's personal experience with overcoming a fear by asking them questions face-to-face. Which method is best? a) interview b) survey c) experiment d) observation 15) What is the process called when researchers select a smaller group from a larger population to collect data? a) experimenting b) observing c) interviewing d) sampling

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