PR2 Quantitative Research Questions and Answers Graded A+
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Course
PR2 Quantitative Research
Institution
PR2 Quantitative Research
PR2 Quantitative Research Questions
and Answers Graded A+
What is a descriptive statistic?
A measure that summarizes and describes the main features of a dataset
What is meant by inferential statistics?
Methods used to make predictions or inferences about a population based on a sample
...
PR2 Quantitative Research Questions
and Answers Graded A+
What is a descriptive statistic?
✔✔A measure that summarizes and describes the main features of a dataset
What is meant by inferential statistics?
✔✔Methods used to make predictions or inferences about a population based on a sample
How does random sampling benefit a research study?
✔✔It ensures that every individual in the population has an equal chance of being selected
What is the role of operational definitions in research?
✔✔They specify how variables will be measured or defined
What does standard deviation measure in a dataset?
✔✔The spread or dispersion of values around the mean
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,Why is replication important in quantitative research?
✔✔It helps to confirm the reliability and validity of study results
What is a null hypothesis?
✔✔A statement that there is no effect or relationship between variables
What is the purpose of an experimental design?
✔✔To test causal relationships between variables
How are results commonly presented in quantitative research?
✔✔Through charts, graphs, and statistical summaries
What does "generalizability" mean in research?
✔✔The extent to which findings apply to the broader population
What is meant by "sampling bias"?
✔✔When the sample does not accurately represent the population
2
,What is the significance of a p-value in research?
✔✔It indicates the probability of obtaining results by chance
What is a longitudinal study?
✔✔A study that collects data from the same subjects over an extended period
Why is peer review important in research?
✔✔It ensures the quality and validity of the study before publication
What is the key characteristic of a hypothesis in quantitative research?
✔✔It is a testable prediction about the relationship between variables
What does reliability mean in the context of quantitative research?
✔✔It refers to the consistency of a measurement over time
How can validity be defined in quantitative research?
✔✔It is the extent to which a tool measures what it claims to measure
3
, What is the role of an independent variable in an experiment?
✔✔It is the variable that is manipulated to observe its effects
What type of data is commonly used in quantitative research?
✔✔Numerical data
Why are statistical methods important in quantitative research?
✔✔They help to analyze and interpret numerical data
What is the purpose of using a large sample size in a study?
✔✔To ensure the findings are generalizable to the population
What is the definition of a dependent variable?
✔✔It is the variable that is measured and affected by changes in the independent variable
How does a researcher minimize bias in quantitative research?
✔✔By using random sampling and controlled methods
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