Podcast
Questions and Answers
What are inclusion criteria in a study population?
What are inclusion criteria in a study population?
- Attributes or characteristics of participants that allow their participation in the study
- Attributes or characteristics of eligible participants that disallow their participation
- Attributes or characteristics of participants that are essential for them to be eligible to participate in the study (correct)
- Attributes or characteristics of eligible participants that disqualify them from the study
What is the purpose of estimating sample size in a study?
What is the purpose of estimating sample size in a study?
- To ensure that the entire study population is enumerated in a reasonable period of time
- To select a subset of the population without estimating the sample size
- To select a subset of the population or a sample, and estimate the sample size (correct)
- To identify the complexities of sample size calculation
What does power refer to in the context of estimating sample size?
What does power refer to in the context of estimating sample size?
- The probability that your test will find a statistically significant difference when such a difference actually exists (correct)
- The probability of finding a statistically significant difference when such a difference does not actually exist
- The likelihood of changes observed in the study population
- The probability of making a Type II error
What are exclusion criteria in a study population?
What are exclusion criteria in a study population?
What do statistical tests look for when determining power?
What do statistical tests look for when determining power?
What is the theoretical population in a research study?
What is the theoretical population in a research study?
What is the process of selecting a number of study units from a defined population called?
What is the process of selecting a number of study units from a defined population called?
What is the main consideration when determining sample size for a study?
What is the main consideration when determining sample size for a study?
Why is it necessary to clearly define the study population for sampling?
Why is it necessary to clearly define the study population for sampling?
Which factor determines whether a sample can include all members of the population in an investigation?
Which factor determines whether a sample can include all members of the population in an investigation?
What is the main purpose of sampling in a research study?
What is the main purpose of sampling in a research study?
What does the term 'theoretical population' refer to?
What does the term 'theoretical population' refer to?
Why is it necessary to define the study population according to age, sex, and residence?
Why is it necessary to define the study population according to age, sex, and residence?
What influences the determination of sample size in a research study?
What influences the determination of sample size in a research study?
When might it be practical to include all members of the population in a research study?
When might it be practical to include all members of the population in a research study?
