1. Qualitative research primarily focuses on:
A. Numerical measurements
B. Statistical hypothesis testing
C. Understanding human experiences and behaviors
D. Laboratory experiments
Answer: C
2. Qualitative research methods mainly originate from:
A. Physics and Chemistry
B. Anthropology, Sociology, and Psychology
C. Mathematics and Statistics
D. Pharmacology
Answer: B
3. The primary form of data collected in qualitative research is:
A. Numbers
B. Laboratory values
C. Text and words
D. Images only
Answer: C
4. Qualitative research attempts to understand reality from:
A. The investigator’s perspective only
B. The participant’s perspective
C. Government records only
D. Statistical models
Answer: B
5. The participant’s perspective in qualitative research is known as the:
A. Etic perspective
B. Emic perspective
C. Experimental perspective
D. Ecological perspective
Answer: B
6. Qualitative research generally follows which type of reasoning?
A. Deductive reasoning
B. Inductive reasoning
C. Mathematical reasoning
D. Experimental reasoning
Answer: B
7. Quantitative research is mainly based on:
A. Inductive reasoning
B. Deductive reasoning
C. Narrative interpretation
D. Ethnography
Answer: B
8. Which statement best distinguishes qualitative from quantitative research?
A. Qualitative research measures variables objectively.
B. Quantitative research mainly generates textual data.
C. Qualitative research emphasizes meanings, experiences, and interpretations.
D. Both methods always use identical designs.
Answer: C
9. In qualitative research, validity mainly depends on:
A. Sample size
B. Statistical significance
C. Credibility of the responses and investigator
D. Laboratory precision
Answer: C
10. Which characteristic is most closely associated with quantitative research?
A. Open-ended interviews
B. Objective measurement and repeatability
C. Participant observation
D. Focus group discussion
Answer: B
11. External generalization in qualitative research is mainly based on:
A. Large random samples
B. Abstract understanding across cultures
C. Statistical inference
D. Experimental replication
Answer: B
12. Qualitative research is particularly useful when researchers want to understand:
A. Disease prevalence
B. Why and how events occur
C. Drug efficacy
D. Relative risk
Answer: B
13. Which question is BEST answered by qualitative research?
A. How many people have diabetes?
B. Why do patients fail to take prescribed medications?
C. What is the incidence of tuberculosis?
D. What is the odds ratio for smoking?
Answer: B
14. Qualitative research is especially valuable when:
A. The topic has already been extensively researched.
B. The subject is poorly understood.
C. The sample size is extremely large.
D. Randomization is required.
Answer: B
15. Which discipline most frequently uses qualitative research to understand social phenomena?
A. Engineering
B. Social sciences
C. Physics
D. Biochemistry
Answer: B
16. Qualitative research methods are generally:
A. Highly structured and fixed
B. Interpretative and flexible
C. Completely standardized
D. Laboratory-based
Answer: B
17. In qualitative research, methodology generally:
A. Remains fixed throughout the study.
B. Evolves as the research progresses.
C. Depends only on statistical software.
D. Never changes after protocol approval.
Answer: B
18. In qualitative research, the investigator often functions as:
A. Laboratory technician
B. Statistical analyst only
C. Co-interpreter and research instrument
D. Randomization officer
Answer: C
19. Which of the following is NOT a common qualitative research method?
A. In-depth interview
B. Focus group discussion
C. Participant observation
D. Randomized controlled trial
Answer: D
20. Which qualitative method involves one investigator interacting individually with one participant?
A. Focus group discussion
B. Participant observation
C. In-depth interview
D. Ecological study
Answer: C
21. An in-depth interview is best described as:
A. A structured questionnaire survey
B. An open-ended one-to-one interview
C. A laboratory experiment
D. A telephone poll
Answer: B
22. The primary objective of an in-depth interview is to:
A. Obtain numerical data
B. Discover the participant’s own understanding and experiences
C. Test a hypothesis statistically
D. Measure disease incidence
Answer: B
23. Even though in-depth interviews are open-ended, researchers commonly use:
A. Random allocation
B. An interview guide
C. A structured questionnaire only
D. Case report forms
Answer: B
24. Which technique helps investigators obtain more detailed responses during in-depth interviews?
A. Matching
B. Probing questions
C. Randomization
D. Stratification
Answer: B
25. Which statement BEST summarizes qualitative research?
A. Qualitative research is an inductive, interpretative approach that focuses on understanding participants’ experiences, behaviors, and meanings through textual data using flexible methods such as in-depth interviews, focus group discussions, and participant observation.
B. Qualitative research depends mainly on statistical hypothesis testing.
C. Qualitative research primarily measures disease frequency.
D. Qualitative research eliminates investigator interpretation.
Answer: A
26. In-depth interviews are particularly useful when:
A. The research topic is simple and well understood
B. The topic is complex and requires detailed exploration
C. A large representative sample is required
D. Only numerical data are needed
Answer: B
27. Which type of research topic is most appropriate for an in-depth interview?
A. Blood pressure measurement
B. Sensitive issues such as sexual behavior or substance abuse
C. National census
D. Drug efficacy trial
Answer: B
28. In-depth interviews are especially valuable when participants are:
A. Randomly selected from a large population
B. Knowledgeable about the subject under investigation
C. Laboratory technicians
D. Children only
Answer: B
29. One advantage of in-depth interviews is that they:
A. Produce only numerical data
B. Provide rich contextual information
C. Require very little time for analysis
D. Eliminate investigator interpretation
Answer: B
30. Which of the following is an important advantage of in-depth interviews?
A. They reveal how people think and interpret their experiences.
B. They are inexpensive large-scale surveys.
C. They always produce generalizable findings.
D. They require no interviewer training.
Answer: A
31. The sampling strategy most commonly used in in-depth interviews is:
A. Simple random sampling
B. Stratified sampling
C. Purposive (purposeful) sampling
D. Systematic sampling
Answer: C
32. Findings from in-depth interviews are generally:
A. Highly generalizable to the entire population
B. Limited in statistical generalizability
C. Free from investigator bias
D. Identical across cultures
Answer: B
33. One major disadvantage of in-depth interviews is:
A. Lack of detailed information
B. Time-consuming data analysis
C. Small sample size prevents any useful conclusions
D. Participants cannot express personal opinions
Answer: B
34. Qualitative data analysis can be challenging because:
A. Data consist mainly of lengthy textual information.
B. There are no participants.
C. Statistical tests cannot be performed.
D. Numerical values are missing.
Answer: A
35. Which factor may influence interpretation of qualitative data?
A. Laboratory calibration
B. Researcher’s perspective
C. Sample size only
D. Randomization
Answer: B
36. A Focus Group Discussion (FGD) is best described as:
A. A laboratory meeting
B. An open-ended discussion among a small group of participants
C. A telephone survey
D. A structured questionnaire
Answer: B
37. A typical focus group usually consists of approximately:
A. 2–3 participants
B. 6–8 participants
C. 20–30 participants
D. More than 100 participants
Answer: B
38. Participants in a focus group are generally selected to be:
A. Completely unrelated
B. Homogeneous with similar characteristics
C. Randomly selected from different countries
D. Equal numbers of patients and doctors
Answer: B
39. Homogeneity among focus group participants helps to:
A. Increase disease prevalence
B. Promote smooth and meaningful discussion
C. Reduce sample size
D. Eliminate confounding
Answer: B
40. Which individual is primarily responsible for guiding the discussion during an FGD?
A. Statistician
B. Moderator
C. Laboratory technician
D. Principal investigator only
Answer: B
41. Besides the moderator, another important member of the FGD team is the:
A. Randomization officer
B. Note-taker
C. Pharmacist
D. Radiologist
Answer: B
42. During Focus Group Discussions, information is commonly recorded using:
A. Audio or video recordings
B. Blood samples
C. Laboratory reports
D. ECG recordings
Answer: A
43. Like in-depth interviews, FGDs also commonly use:
A. Random allocation
B. Interview guides
C. Matching
D. Blinding
Answer: B
44. The interview guide in an FGD is considered:
A. Strictly fixed and unchangeable
B. Flexible and adaptable to the discussion
C. Unnecessary
D. Statistical software
Answer: B
45. Focus Group Discussions are especially useful when researchers want to:
A. Measure disease incidence
B. Generate ideas through group interaction
C. Calculate relative risk
D. Perform laboratory diagnosis
Answer: B
46. Focus Group Discussions are particularly useful for:
A. Identifying local terminology and community vocabulary
B. Measuring biochemical parameters
C. Randomized clinical trials
D. Estimating disease prevalence
Answer: A
47. One important advantage of Focus Group Discussions is that they:
A. Collect rich information from several participants in a relatively short time
B. Eliminate investigator bias completely
C. Always produce representative findings
D. Require no planning
Answer: A
48. One limitation of Focus Group Discussions is that:
A. Dominant participants may influence the discussion.
B. No data are generated.
C. Participants cannot interact.
D. Audio recording is impossible.
Answer: A
49. Which type of topic may be difficult to discuss openly during an FGD?
A. Personal or highly sensitive behaviors
B. Community health programs
C. Educational activities
D. Public awareness campaigns
Answer: A
50. Which statement BEST summarizes In-depth Interviews and Focus Group Discussions?
A. In-depth interviews provide detailed individual perspectives through one-to-one open-ended conversations, whereas Focus Group Discussions obtain rich information through interaction among a small homogeneous group led by a moderator. Both use flexible interview guides and generate textual data for qualitative analysis.
B. Both methods primarily collect numerical data.
C. Focus Group Discussions replace all individual interviews.
D. Both methods use probability sampling and produce highly generalizable findings.
Answer: A
51. Which qualitative research method involves the researcher becoming part of the group being studied?
A. Focus Group Discussion
B. In-depth Interview
C. Participant Observation
D. Cross-sectional Survey
Answer: C
52. Participant observation mainly originates from:
A. Clinical epidemiology
B. Ethnography and Anthropology
C. Experimental pharmacology
D. Laboratory medicine
Answer: B
53. The greatest strength of participant observation is:
A. Large sample size
B. Collection of rich and detailed contextual information
C. Statistical precision
D. Random sampling
Answer: B
54. One major challenge of participant observation is:
A. Difficulty in obtaining informed consent
B. Difficulty in systematically recording observations while participating
C. Lack of participant interaction
D. Excessive statistical analysis
Answer: B
55. Data generated through participant observation are primarily:
A. Numerical
B. Laboratory-based
C. Textual and descriptive
D. Radiological
Answer: C
56. Which statement regarding participant observation is TRUE?
A. The researcher remains completely detached.
B. The researcher actively participates in the social setting.
C. It is identical to a questionnaire survey.
D. It requires randomization.
Answer: B
57. Qualitative data consist mainly of:
A. Laboratory values
B. Numerical variables
C. Words, narratives, and observations
D. Incidence rates
Answer: C
58. Which approach develops theories directly from collected qualitative data?
A. Logistic regression
B. Grounded Theory
C. Meta-analysis
D. Survival analysis
Answer: B
59. Grounded Theory primarily begins with:
A. A predefined hypothesis
B. Existing theoretical framework
C. Data collected from participants
D. Experimental intervention
Answer: C
60. Content Analysis primarily begins with:
A. Observation only
B. Existing theoretical framework
C. Random sampling
D. Laboratory measurements
Answer: B
61. Which statement best differentiates Grounded Theory from Content Analysis?
A. Grounded Theory develops theory from data, whereas Content Analysis examines data using an existing theoretical framework.
B. Both methods are identical.
C. Content Analysis develops theories without data.
D. Grounded Theory requires quantitative variables.
Answer: A
62. Before qualitative data can be analyzed, interviews are usually:
A. Randomized
B. Transcribed into text
C. Matched
D. Standardized numerically
Answer: B
63. Coding in qualitative research refers to:
A. Computer programming
B. Assigning labels to meaningful themes and categories
C. Statistical testing
D. Random allocation
Answer: B
64. After coding, researchers primarily:
A. Calculate prevalence
B. Build relationships among themes and categories
C. Perform t-tests
D. Estimate relative risk
Answer: B
65. Codes in qualitative research are mainly used to:
A. Replace participant responses
B. Illustrate major themes using participants’ own words
C. Increase sample size
D. Measure disease frequency
Answer: B
66. Qualitative research can be used before a quantitative study mainly to:
A. Estimate prevalence
B. Develop ideas and improve questionnaires
C. Randomize participants
D. Measure incidence
Answer: B
67. A researcher conducts interviews to understand why villagers practice open defecation before developing a survey questionnaire. This is an example of:
A. Experimental research
B. Using qualitative research to generate hypotheses and survey questions
C. Cohort study
D. Ecological study
Answer: B
68. Qualitative research may also be conducted after a quantitative study to:
A. Increase sample size
B. Better explain unexpected quantitative findings
C. Calculate relative risk
D. Reduce recall bias
Answer: B
69. Which of the following is the PRIMARY objective when qualitative research is the main study design?
A. Estimate disease prevalence
B. Understand behaviors, beliefs, and experiences in depth
C. Measure laboratory parameters
D. Perform randomized allocation
Answer: B
70. Which research approach combines qualitative and quantitative methods in a single study?
A. Ecological study
B. Mixed-methods research
C. Case series
D. Cross-sectional survey
Answer: B
71. Which statement regarding mixed-methods research is TRUE?
A. Only quantitative data are collected.
B. Only qualitative methods are used.
C. Both qualitative and quantitative methods complement each other.
D. It eliminates all forms of bias.
Answer: C
72. Triangulation in qualitative research refers to:
A. Measuring three variables simultaneously
B. Using multiple methods, investigators, theories, or data sources to study the same phenomenon
C. Statistical adjustment for confounding
D. Three-stage random sampling
Answer: B
73. The primary purpose of triangulation is to:
A. Increase disease prevalence
B. Improve credibility and reduce interpretative bias
C. Increase sample size
D. Replace quantitative methods
Answer: B
74. Which of the following is an example of methodological triangulation?
A. Using only one interview
B. Combining Focus Group Discussions and In-depth Interviews to study the same research question
C. Using one investigator only
D. Collecting laboratory samples
Answer: B
75. Which statement BEST summarizes qualitative data analysis and triangulation?
A. Qualitative analysis involves transcription, coding, theme development, and interpretation using approaches such as Grounded Theory and Content Analysis. The credibility of findings is strengthened through triangulation by combining different methods, investigators, theories, or data sources.
B. Qualitative analysis depends only on statistical hypothesis testing.
C. Grounded Theory and Content Analysis are identical.
D. Triangulation eliminates the need for investigator judgment.
Answer: A
76. A researcher wants to understand why tuberculosis patients discontinue treatment despite free medication. Which qualitative method would provide the richest individual experiences?
A. Cross-sectional survey
B. In-depth interview
C. Ecological study
D. Cohort study
Answer: B
77. A public health researcher wants community members to discuss barriers to childhood vaccination and generate possible solutions together. Which method is MOST appropriate?
A. Participant observation
B. Focus Group Discussion
C. Randomized Controlled Trial
D. Case-control study
Answer: B
78. While studying tribal cultural practices, the investigator lives with the community for several months and participates in their daily activities. This is an example of:
A. In-depth interview
B. Focus Group Discussion
C. Participant observation
D. Structured questionnaire survey
Answer: C
79. Which of the following is the greatest advantage of participant observation?
A. Large representative sample
B. Direct and detailed understanding of real-life social behavior
C. Fast statistical analysis
D. Random sampling
Answer: B
80. During participant observation, the greatest challenge is:
A. Randomization
B. Systematic recording and interpretation of observations
C. Laboratory analysis
D. Blinding participants
Answer: B
81. A researcher develops a theory explaining adolescent smoking behavior entirely from interview transcripts without relying on previous theories. Which analytical approach is being used?
A. Content Analysis
B. Grounded Theory
C. Logistic Regression
D. Survival Analysis
Answer: B
82. A researcher begins with the Health Belief Model and analyzes interview transcripts according to its predefined concepts. This is an example of:
A. Grounded Theory
B. Content Analysis
C. Participant Observation
D. Phenomenology
Answer: B
83. Which of the following is performed immediately after interview transcription?
A. Randomization
B. Coding
C. Matching
D. Stratification
Answer: B
84. Coding primarily helps researchers to:
A. Increase sample size
B. Organize textual information into meaningful themes
C. Calculate relative risk
D. Eliminate bias completely
Answer: B
85. In qualitative analysis, themes are primarily developed by:
A. Statistical hypothesis testing
B. Interpreting patterns among coded data
C. Random allocation
D. Measuring disease frequency
Answer: B
86. Which statement best describes the relationship between qualitative and quantitative research?
A. They are competing approaches and should never be combined.
B. They complement one another by answering different research questions.
C. Quantitative research has replaced qualitative research.
D. Qualitative research is useful only in anthropology.
Answer: B
87. A researcher conducts Focus Group Discussions before preparing a national survey questionnaire. The qualitative study is mainly used to:
A. Estimate disease prevalence
B. Develop concepts and improve questionnaire design
C. Measure incidence
D. Perform statistical hypothesis testing
Answer: B
88. After completing a quantitative survey, investigators conduct in-depth interviews to explain unexpected findings. This represents:
A. Sequential use of qualitative research to interpret quantitative results
B. Experimental research
C. Ecological analysis
D. Case series
Answer: A
89. Which of the following BEST describes mixed-methods research?
A. Using only numerical data
B. Using only qualitative interviews
C. Integrating qualitative and quantitative approaches in one study
D. Combining two statistical tests
Answer: C
90. Which statement regarding mixed-methods research is TRUE?
A. It increases understanding by combining the strengths of both approaches.
B. It eliminates all forms of bias.
C. It replaces qualitative research completely.
D. It requires only numerical data.
Answer: A
91. Which of the following BEST defines triangulation?
A. Repeating the same interview three times
B. Using multiple methods, investigators, theories, or data sources to improve credibility
C. Recruiting participants from three hospitals
D. Using three statistical tests
Answer: B
92. Which type of triangulation involves different researchers independently interpreting the same data?
A. Data triangulation
B. Method triangulation
C. Investigator triangulation
D. Time triangulation
Answer: C
93. Which type of triangulation involves collecting information from different participant groups or settings?
A. Data triangulation
B. Theory triangulation
C. Investigator triangulation
D. Method triangulation
Answer: A
94. Which type of triangulation compares findings using different theoretical perspectives?
A. Method triangulation
B. Theory triangulation
C. Data triangulation
D. Statistical triangulation
Answer: B
95. Which of the following BEST explains why triangulation is important?
A. It increases disease prevalence.
B. It improves confidence in findings by reducing selective interpretation and bias.
C. It replaces statistical analysis.
D. It eliminates the need for interviews.
Answer: B
96. Qualitative research is especially useful for identifying:
A. Relative risks
B. Determinants of health behaviors and attitudes
C. Disease incidence
D. Laboratory reference ranges
Answer: B
97. Which of the following public health questions is BEST answered using qualitative research?
A. What is the prevalence of hypertension?
B. Why do pregnant women avoid institutional delivery despite available services?
C. What is the incidence of tuberculosis?
D. What is the vaccine efficacy?
Answer: B
98. Which statement regarding qualitative research is CORRECT?
A. It seeks an in-depth understanding of human experiences rather than numerical measurement.
B. It depends primarily on statistical significance.
C. It requires probability sampling.
D. It cannot contribute to public health research.
Answer: A
99. According to the lecture, no single research method can:
A. Estimate disease frequency.
B. Provide complete understanding of every research problem.
C. Generate numerical data.
D. Measure health behaviors.
Answer: B
100. Which statement BEST summarizes Qualitative Research Methods?
A. Qualitative research is an inductive, flexible, and interpretative approach that explores human experiences, behaviors, beliefs, and social contexts through methods such as in-depth interviews, focus group discussions, and participant observation. Data are analyzed through transcription, coding, and theme development using approaches like Grounded Theory and Content Analysis. When integrated with quantitative research and strengthened through triangulation, qualitative methods provide comprehensive and credible insights into complex health problems.
B. Qualitative research is based entirely on statistical hypothesis testing.
C. Qualitative research replaces quantitative research in all situations.
D. Qualitative research is useful only for anthropological studies.
Answer: A
