Sampling and Population in Research
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Questions and Answers

What is the purpose of sampling in a research study?

  • To allow researchers to focus on a specific subgroup of the population
  • To provide a margin of error in the research results
  • To ensure that every member of the population is included in the study
  • To save time and money compared to conducting a complete census (correct)

    • What is an element in the context of sampling?

  • A mathematical term used in Slovin's Formula
  • A characteristic common to all members of a population
  • A type of probability sampling method
  • A member of a population who can provide information for the population (correct)

    • What is the definition of a population in the context of research?

  • The group of individuals that are usually selected for a sample
  • The total elements about which inferences can be made based on data gathered from a sample (correct)
  • A subgroup of individuals chosen for detailed study
  • The total members of a group that share common or similar characteristics

    • What does Slovin’s Formula help researchers calculate?

    <p>The number of elements required for a representative sample</p> Signup and view all the answers

    What is the margin of error in research?

    <p>The range within which we expect the true value to lie based on sample results</p> Signup and view all the answers

    What is the characteristic of simple random sampling?

    <p>It ensures that every member of the population has an equal chance of being selected</p> Signup and view all the answers

    What is systematic random sampling?

    <p>Selecting every nth element from a list of elements for inclusion in the sample</p> Signup and view all the answers

    What is cluster sampling used for?

    <p>Targeted respondents spread across a geographical location</p> Signup and view all the answers

    What is convenience sampling?

    <p>Selecting samples that are available and capable of participating in a research study</p> Signup and view all the answers

    What is purposive sampling also known as?

    <p>Judgmental or Subjective Sampling</p> Signup and view all the answers

    How is stratified random sampling performed?

    <p>Dividing the population into mutually exclusive categories and then selecting samples from each category</p> Signup and view all the answers

    What does snowball sampling involve?

    <p>Identifying a key informant who can then refer or identify another respondent for the study</p> Signup and view all the answers

    What is quota sampling based on?

    <p>Gathering a representative sample from a group based on certain characteristics of the population chosen by the researcher</p> Signup and view all the answers

    What does convenience sampling involve?

    <p>Selecting samples that are available and capable of participating in a research study on a current issue</p> Signup and view all the answers

    What does purposive sampling involve?

    <p>Choosing members for a special purpose</p> Signup and view all the answers

    What is systematic random sampling used for?

    <p>Selecting every nth element from a list of elements for inclusion in the sample</p> Signup and view all the answers

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