#1
What is the primary goal of descriptive research?
To explore and describe phenomena
ExplanationDescriptive research aims to provide an in-depth understanding by describing and exploring phenomena.
#2
Which type of sampling method involves selecting participants who are easily accessible or readily available?
Convenience sampling
ExplanationConvenience sampling involves selecting participants based on their easy accessibility or availability, often leading to biased results.
#3
In survey research, what is a Likert scale used for?
Measuring attitudes or opinions
ExplanationLikert scales are used to measure attitudes or opinions by assessing the degree of agreement or disagreement with statements.
#4
Which of the following is a measure of central tendency?
Mean
ExplanationThe mean is a measure of central tendency that represents the average value of a dataset.
#5
What is the purpose of a research hypothesis in the scientific method?
To guide the research process and make predictions
ExplanationA research hypothesis serves as a tentative explanation or prediction that guides the research process and provides a framework for testing.
#6
What is the purpose of a research design in a scientific study?
To guide the overall plan and structure of the study
ExplanationResearch design outlines the framework for conducting a study, including the selection of methods and procedures to ensure valid and reliable results.
#7
Which of the following is an example of a qualitative research method?
Case study
ExplanationQualitative research methods, like case studies, delve into the depth of understanding and context.
#8
What is the purpose of a t-test in statistics?
To compare means of two independent groups
ExplanationA t-test is used to determine if there is a significant difference between the means of two groups.
#9
Which statistical test is used to determine if there is a significant association between two categorical variables?
Chi-square test
ExplanationThe Chi-square test assesses whether there is a significant association between two categorical variables.
#10
What is the main purpose of content analysis in qualitative research?
To examine the meaning of written or visual content
ExplanationContent analysis in qualitative research aims to systematically analyze and interpret the meaning within textual or visual data.
#11
What is the primary purpose of an Institutional Review Board (IRB) in research?
To ensure ethical treatment of research participants
ExplanationIRBs are responsible for reviewing and approving research protocols to safeguard the welfare and rights of research participants.
#12
In qualitative research, what is the purpose of thematic analysis?
To examine patterns or themes in data
ExplanationThematic analysis involves identifying and interpreting recurring patterns or themes within qualitative data to gain insight into the underlying meaning.
#13
In experimental research, what is the purpose of a control group?
To provide a baseline for comparison
ExplanationControl groups are essential in experiments to establish a baseline against which the effects of the experimental manipulation can be compared.
#14
What is the term for the phenomenon where participants modify their behavior because they are aware they are being observed?
Hawthorne effect
ExplanationThe Hawthorne effect refers to changes in behavior due to awareness of being observed, influencing study outcomes.
#15
In a research study, what is the difference between reliability and validity?
Reliability refers to consistency, and validity refers to accuracy
ExplanationReliability concerns the consistency of measurement, while validity concerns the accuracy of the measurement in reflecting the intended concept.
#16
What is the purpose of a meta-analysis in research?
To combine and analyze data from multiple studies
ExplanationMeta-analysis pools data from multiple studies to provide a comprehensive analysis and draw more robust conclusions.
#17
What does the term 'p-value' represent in hypothesis testing?
The level of statistical significance
ExplanationThe p-value indicates the probability of obtaining the observed results by chance alone, thus assessing the statistical significance of the findings.
#18
What is the difference between a cross-sectional study and a longitudinal study?
Cross-sectional studies examine a single point in time, while longitudinal studies follow participants over time
ExplanationCross-sectional studies capture data at a single point in time, whereas longitudinal studies track participants over an extended period to observe changes over time.