Probability and Non-Probability Sampling Methods
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Questions and Answers

What is the primary advantage of using proportionate stratified sampling in a research study?

  • It guarantees that the sample will be perfectly representative of the population. (correct)
  • It allows for the selection of clusters rather than individual participants.
  • It reduces the likelihood of sampling bias due to the use of randomization.
  • It ensures that every individual in the population has an equal chance of being selected.

    • In a cluster sampling method, what is typically selected from a list of all the clusters that exist within the population?

  • Systematic samples
  • Individual participants
  • Preexisting groups (correct)
  • Random strata

    • What is the primary limitation of cluster sampling?

  • It does not ensure randomness in the selection of participants.
  • It is a time-consuming and expensive method.
  • It is only used in qualitative research studies.
  • The selections are not really random or independent. (correct)

    • Which of the following is a condition under which deception may be used in a research study?

    <p>When participants’ knowledge of a study’s true purpose will have a negative impact on their actions or responses.</p> Signup and view all the answers

    What is the primary purpose of using stratified sampling in a research study?

    <p>To guarantee that the sample will be perfectly representative of the population.</p> Signup and view all the answers

    What is the difference between proportionate and disproportionate stratified sampling?

    <p>Proportionate sampling involves selecting a sample from each stratum in proportion to the population, while disproportionate sampling involves selecting a sample from each stratum in equal numbers.</p> Signup and view all the answers

    What is the primary advantage of using random sampling in a research study?

    <p>It reduces the likelihood of sampling bias due to the use of randomization.</p> Signup and view all the answers

    What is the primary difference between cluster sampling and systematic sampling?

    <p>Cluster sampling involves selecting preexisting groups, while systematic sampling involves selecting every nth individual from a list.</p> Signup and view all the answers

    What is the primary limitation of using deception in a research study?

    <p>It may lead to participants changing the way they would act normally.</p> Signup and view all the answers

    What is the primary purpose of using deception in a research study?

    <p>To prevent participants from changing their behavior or hiding information if they knew the true purpose of the study.</p> Signup and view all the answers

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