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Quantitative Research Methods Final Questions and Answers Graded A+
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Quantitative Research Methods Final Questions and Answers Graded A+ What is the significance of statistical power in quantitative research? Statistical power refers to the probability of detecting a true effect if it exists, reducing the likelihood of Type II errors. What is the purpose of...

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  • November 24, 2024
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Quantitative Research Methods Final
Questions and Answers Graded A+
What is the significance of statistical power in quantitative research?


✔✔Statistical power refers to the probability of detecting a true effect if it exists, reducing the

likelihood of Type II errors.




What is the purpose of using a Likert scale in surveys?


✔✔To measure attitudes, opinions, or behaviors along a continuum from one extreme to another.




What is a null hypothesis in quantitative research?


✔✔A statement that there is no effect or relationship between the variables being studied.




What is the difference between cross-sectional and longitudinal studies?


✔✔Cross-sectional studies examine data at a single point in time, while longitudinal studies

track data over time.




What is the purpose of conducting a t-test in quantitative research?


✔✔To determine if there is a significant difference between the means of two groups.


1

,What is the role of a variable's operational definition in quantitative research?


✔✔It defines how the variable will be measured or quantified in the study.




How is a chi-square test used in quantitative research?


✔✔It is used to determine if there is a significant association between categorical variables.




What does the term "data validity" refer to in quantitative research?


✔✔The degree to which the data accurately measures what it is intended to measure.




How is a sample different from a population in quantitative research?


✔✔A sample is a subset of the population, selected to represent the population for the purpose of

the study.




Why is it important to control extraneous variables in quantitative research?


✔✔To ensure that the results of the study are due to the manipulation of the independent

variable, not other factors.




2

, What is the role of a literature review in quantitative research?


✔✔To identify gaps in existing knowledge and help form the basis for research questions and

hypotheses.




What does statistical significance mean in quantitative research?


✔✔It means the observed results are unlikely to have occurred by chance and are likely to reflect

a true effect.




What is the difference between a one-tailed and a two-tailed hypothesis test?


✔✔A one-tailed test predicts the direction of the effect, while a two-tailed test does not specify

the direction.




How does the central limit theorem relate to quantitative research?


✔✔It states that the distribution of sample means will approach a normal distribution as the

sample size increases, regardless of the population distribution.




What is the purpose of using a random number generator in quantitative research?


✔✔To select random samples or assignments, ensuring unbiased data collection.




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