#1
What is the purpose of a pilot study?
To test the feasibility of the main study
ExplanationPilot studies are conducted to assess the practicality and viability of the main study's design and procedures.
#2
What is the purpose of a control group in an experimental study?
To provide a comparison for the experimental group
ExplanationA control group allows for comparison, helping to isolate the effects of the experimental intervention.
#3
Which of the following statements best describes the purpose of an exploratory study?
To identify new research questions and areas of inquiry
ExplanationExploratory studies aim to uncover new research questions, generating insights and laying the groundwork for further investigation.
#4
What is the primary purpose of sampling in research?
To ensure representativeness of the sample
ExplanationSampling is crucial to ensure that the selected participants accurately represent the larger population under investigation.
#5
What is the primary purpose of a pilot study in research?
To assess the feasibility of the main study
ExplanationPilot studies help researchers evaluate the practicality and workability of the main study, refining protocols and procedures.
#6
Which of the following is a characteristic of a randomized controlled trial (RCT)?
It allows for causal inference
ExplanationRCTs involve random assignment of participants to different groups, allowing for causal inference.
#7
Which of the following is a limitation of a cross-sectional study design?
It cannot establish causality
ExplanationCross-sectional studies capture a snapshot of data at a single point in time, making it challenging to establish cause-and-effect relationships.
#8
In which type of study design are participants 'followed up' over a period of time to assess outcomes?
Longitudinal study
ExplanationLongitudinal studies involve tracking participants over time to observe changes in variables and assess outcomes.
#9
What is the primary advantage of using a qualitative research method?
It provides rich, in-depth data
ExplanationQualitative research focuses on detailed exploration, yielding rich and nuanced data about the studied phenomena.
#10
Which of the following is an example of a convenience sampling technique?
Volunteer sampling
ExplanationConvenience sampling involves selecting easily accessible participants, such as volunteers, leading to a convenient but non-random sample.
#11
What is the purpose of blinding in a clinical trial?
To prevent bias in the assessment of outcomes
ExplanationBlinding ensures that those involved in the study, including participants and assessors, are unaware of group assignments, reducing bias in outcome assessment.
#12
What is the primary limitation of a convenience sampling method?
It is difficult to generalize findings
ExplanationConvenience sampling may not represent the broader population, limiting the generalizability of findings.
#13
What is the purpose of triangulation in research?
To enhance the credibility of findings
ExplanationTriangulation involves using multiple methods or data sources to corroborate findings, improving the overall credibility of the research.