#1
Which sampling technique involves selecting individuals who are conveniently available for the study?
Purposive sampling
Random sampling
Convenience sampling
Stratified sampling
#2
Which of the following is a qualitative research method often used in healthcare?
Randomized Controlled Trial
Cross-sectional Study
Phenomenological Study
Systematic Review
#3
What is the primary goal of a systematic review in healthcare research?
To test a hypothesis
To identify cause-effect relationships
To summarize and evaluate existing evidence
To collect original data
#4
Which statistical test is commonly used to compare means of two independent groups in healthcare research?
Chi-square test
Independent t-test
ANOVA
Paired t-test
#5
Which of the following is a common qualitative data collection method in healthcare research?
Questionnaire survey
Structured interview
Focus group discussion
Observational study
#6
What is the purpose of a pilot study in healthcare research?
To collect preliminary data
To recruit participants
To finalize research design
To analyze research findings
#7
Which of the following is NOT a common data analysis method in qualitative research?
Content analysis
Thematic analysis
ANOVA
Grounded theory
#8
Which ethical principle emphasizes the importance of obtaining informed consent from research participants?
Beneficence
Non-maleficence
Justice
Autonomy
#9
Which type of validity refers to the extent to which study findings can be generalized to other populations or settings?
Internal validity
External validity
Construct validity
Content validity
#10
Which of the following is a characteristic of quantitative research?
Focuses on exploring meanings and experiences
Uses statistical analysis
Involves small sample sizes
Emphasizes subjective interpretations
#11
What is the purpose of a literature review in healthcare research?
To summarize research findings
To collect primary data
To design data collection tools
To establish research objectives
#12
Which of the following is NOT a common type of bias in research?
Confirmation bias
Randomization bias
Selection bias
Observer bias
#13
What is the term used to describe the extent to which study findings are consistent and reproducible?
Validity
Reliability
Generalizability
Precision
#14
Which of the following research designs involves studying a group of individuals over time to observe changes or outcomes?
Cross-sectional study
Case-control study
Longitudinal study
Meta-analysis
#15
Which of the following is a common method for data collection in qualitative research?
Surveys
Experiments
Observation
Randomized controlled trials
#16
What is the primary goal of exploratory research?
To test hypotheses
To establish cause-effect relationships
To generate insights and ideas
To collect numerical data
#17
In healthcare research, what is a confounding variable?
A variable that is intentionally manipulated by the researcher
A variable that distorts the relationship between the independent and dependent variables
A variable that directly influences the outcome variable
A variable that is controlled for in statistical analysis
#18
In healthcare research, what does 'blinding' refer to?
Ensuring participants are similar across groups
Preventing researchers from knowing group assignments
Ensuring participants are unaware of the study's purpose
Ensuring participants are treated equally
#19
What is the purpose of a meta-analysis in healthcare research?
To explore new research questions
To combine and analyze results from multiple studies
To conduct a randomized controlled trial
To recruit participants
#20
Which of the following is a common method for reducing confounding in observational studies?
Randomization
Matching
Placebo control
Blinding
#21
What is the purpose of a chi-square test in healthcare research?
To compare means of two groups
To analyze variance within a group
To test independence between categorical variables
To assess correlation between two continuous variables
#22
In a randomized controlled trial (RCT), what is the purpose of random assignment?
To ensure blinding
To eliminate selection bias
To control for confounding variables
To recruit participants
#23
Which of the following is a characteristic of a cross-sectional study design?
Longitudinal data collection
Retrospective data analysis
Observation at a single point in time
Experimental manipulation of variables