Sampling Methods in Research

What is the primary goal of sampling in research?

• To select participants randomly

• To ensure samples are biased

• To generalize findings from the sample to the larger population

• To focus on a small group of participants

Which of the following best defines the "target population" in a research study?

• The group of participants who are actually selected for the study

• The group defined by the researcher's specific interests

• A sample that represents the whole population

• The people that the researcher can realistically involve in the study

What is a key characteristic of probability sampling methods?

• The sample is chosen based on convenience

• The odds of selecting an individual are unknown

• Each individual in the population has a specified probability of selection

• Selection is always done without replacement

Which sampling method involves selecting participants randomly from subgroups to ensure all subgroups are represented?

• Stratified random sampling

• Systematic sampling

• Convenience sampling

• Cluster sampling

Which of the following is true about convenience sampling?

• It involves random selection from the entire population

• It is a strong, reliable sampling method

• It may result in a biased sample because participants are selected based on availability

• It is most commonly used in probability sampling

Which of the following sampling techniques is best suited for large-scale surveys or political polls?

• Stratified random sampling

• Convenience sampling

• Combined-strategy sampling

• Simple random sampling

What is a characteristic of quota sampling?

• Participants are randomly selected

• Subgroups are represented through convenience, not random selection

• It guarantees a perfectly unbiased sample

• It uses a highly structured, random sampling process

What ethical consideration must be taken into account when determining sample size?

• The sample should always be as large as possible

• A sample that is too large may be unethical by wasting resources

• Sample size has no ethical implications

• A sample size must be smaller to ensure ethical research

What is the key feature of cluster sampling?

• Individuals are randomly selected from the entire population

• Preexisting groups or clusters are randomly selected from the population

• Equal numbers of participants are selected from each subgroup

• A sample is selected using a systematic method from the population list

Which of the following best describes stratified random sampling?

• It involves randomly selecting individuals from preexisting groups within the population

• The population is divided into subgroups, and random samples are taken from each subgroup

• Every nth individual is selected from the population list

• The researcher selects participants based on availability and willingness