Sampling Flashcards
(25 cards)
What is sampling in research?
Sampling is the process of selecting a subset of individuals from a population to estimate characteristics of the whole population.
True or False: A sample must represent the entire population accurately.
True
What is a population in the context of sampling?
A population is the entire group of individuals or instances about whom we hope to learn.
What is a sample?
A sample is a subset of the population that is used to represent the entire group.
Fill in the blank: The process of selecting a sample from a population is called __________.
sampling
What is the purpose of sampling?
The purpose of sampling is to gather data and make inferences about a population without surveying every individual.
Name one method of sampling.
Random sampling
True or False: Convenience sampling is a type of probability sampling.
False
What is random sampling?
Random sampling is a sampling technique where each member of the population has an equal chance of being selected.
What is stratified sampling?
Stratified sampling involves dividing the population into subgroups and randomly sampling from each subgroup.
What is systematic sampling?
Systematic sampling is a method where you select every nth individual from a list of the population.
Fill in the blank: In __________ sampling, individuals are selected based on their availability or easy access.
convenience
What is cluster sampling?
Cluster sampling involves dividing the population into clusters and then randomly selecting entire clusters to sample.
True or False: The larger the sample size, the more accurate the estimate of the population parameter.
True
What is a sampling frame?
A sampling frame is a list or database from which a sample is drawn.
What is sampling bias?
Sampling bias occurs when some members of the population are systematically more likely to be selected than others.
What is the difference between probability and non-probability sampling?
Probability sampling involves random selection, while non-probability sampling does not.
Fill in the blank: __________ sampling is often used in qualitative research.
Purposive
What is a representative sample?
A representative sample accurately reflects the characteristics of the population from which it is drawn.
True or False: Non-probability sampling can lead to more biased results compared to probability sampling.
True
Name one advantage of using a small sample size.
It is less costly and time-consuming.
What is oversampling?
Oversampling is the practice of sampling a larger number of individuals from a subgroup to ensure adequate representation.
Fill in the blank: __________ error refers to the difference between the sample statistic and the actual population parameter.
Sampling
What is convenience sampling commonly used for?
Convenience sampling is commonly used for exploratory research or pilot studies.
