What is the definition of 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 always represent the entire population accurately.
True
What is the difference between probability sampling and non-probability sampling?
Probability sampling involves random selection, allowing each member of the population an equal chance of being chosen, while non-probability sampling does not.
What is simple random sampling?
Simple random sampling is a method where each member of the population has an equal probability of being selected.
Fill in the blank: In _______ sampling, the population is divided into subgroups, and random samples are taken from each subgroup.
stratified
What is systematic sampling?
Systematic sampling is a method where members of the population are selected at regular intervals from a randomly ordered list.
What is cluster sampling?
Cluster sampling is a method where the population is divided into clusters, and entire clusters are randomly selected.
True or False: Convenience sampling is a type of probability sampling.
False
What is convenience sampling?
Convenience sampling is a non-probability sampling method where participants are selected based on their availability and willingness to participate.
What is snowball sampling?
Snowball sampling is a non-probability sampling method where existing study subjects recruit future subjects from among their acquaintances.
Fill in the blank: _______ sampling is useful in studying hard-to-reach populations.
Snowball
What is the main advantage of probability sampling?
The main advantage of probability sampling is that it allows for generalization of results to the larger population.
What is a sampling frame?
A sampling frame is a list or database from which a sample is drawn.
True or False: Non-probability sampling methods can introduce bias into the results.
True
What is the main disadvantage of convenience sampling?
The main disadvantage of convenience sampling is that it may not accurately represent the population, leading to biased results.
What is quota sampling?
Quota sampling is a non-probability sampling method where researchers ensure equal representation of various subgroups in the sample.
Fill in the blank: _______ sampling is often used in market research to gather opinions from specific demographic groups.
Quota
What is the relationship between sample size and the accuracy of research findings?
Generally, larger sample sizes lead to more accurate and reliable findings.
What is the purpose of pilot testing a sample?
Pilot testing a sample helps identify potential issues in the sampling method and allows for adjustments before the main study.
True or False: Stratified sampling can help reduce sampling error.
True
What is the key characteristic of purposive sampling?
Purposive sampling involves selecting individuals based on specific characteristics or criteria relevant to the research.
What type of sampling is often used in qualitative research?
Purposive sampling is often used in qualitative research.
What is the significance of randomization in sampling?
Randomization helps eliminate selection bias and ensures that the sample is representative of the population.
Fill in the blank: The _______ of the sample refers to the degree to which it accurately reflects the population.
representativeness
