trrer Flashcards
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: Random sampling eliminates selection bias.
True.
What is a major advantage of simple random sampling?
It ensures that every member of the population has an equal chance of being selected.
List one disadvantage of systematic sampling.
It can introduce bias if there is a hidden pattern in the population.
What is stratified sampling?
Stratified sampling involves dividing the population into subgroups and randomly sampling from each subgroup.
Fill in the blank: _____ sampling is useful when the population is heterogeneous.
Stratified.
True or False: Cluster sampling is always more accurate than simple random sampling.
False.
What is the purpose of using quota sampling?
Quota sampling aims to ensure that specific characteristics are represented in the sample.
What is one key advantage of cluster sampling?
It can reduce costs and time by sampling entire groups rather than individuals.
Fill in the blank: In _____ sampling, researchers select participants based on availability.
Convenience.
Identify one limitation of stratified sampling.
It requires detailed knowledge about the population to create appropriate strata.
What is an example of a probability sampling method?
Simple random sampling.
Fill in the blank: _____ sampling can lead to over-representation of certain groups.
Quota.
What is the main goal of sampling methods?
To obtain a representative subset of a population for analysis.
True or False: Non-probability sampling methods guarantee a representative sample.
False.
What is a disadvantage of using cluster sampling?
It may increase sampling error if the clusters are not homogeneous.
Which sampling method is best for ensuring diversity in the sample?
Stratified sampling.
True or False: Systematic sampling is a type of probability sampling.
True.
