Sampling Design and Selection Process
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Questions and Answers

What is the main purpose of stratified sampling?

  • To divide the population into strata and draw the sample at random from each division (correct)
  • To ensure that every member of the population has an equal chance of being selected
  • To choose the nth name in a population as the sample
  • To use a group as a sample rather than an individual

    • What is the characteristic of systematic sampling?

  • It entails choosing the nth name in a population as the sample (correct)
  • It uses a group as a sample rather than an individual
  • Different stages are involved in the sampling process
  • Every member of the population is given an equal chance to be selected

    • What is the defining feature of cluster sampling?

  • Every member of the population is given an equal chance to be selected
  • It uses a group as a sample rather than an individual (correct)
  • It divides the population into strata and draws the sample at random from each division
  • It chooses the nth name in a population as the sample

    • What is the primary goal of multi-stage sampling?

    <p>To involve different stages in the sampling process</p> Signup and view all the answers

    What does random sampling entail?

    <p>Giving every member of the population an equal chance to be selected</p> Signup and view all the answers

    What is the main objective of using a questionnaire in social science research?

    <p>To obtain relevant information most reliably and validly</p> Signup and view all the answers

    Which type of validity refers to how well a concept, idea, or behavior is transformed into a functioning reality?

    <p>Construct Validity</p> Signup and view all the answers

    What does the criterion-related validity measure indicate?

    <p>How scores from the test are correlated with an external criterion</p> Signup and view all the answers

    What is the aim of using the test-retest or stability test method in establishing reliability?

    <p>To determine how consistently or dependably a measurement scale measures what it is supposed to measure</p> Signup and view all the answers

    What should an instrument be able to do to demonstrate sensitivity?

    <p>Identify a case correctly (i.e., screen or diagnose a condition correctly)</p> Signup and view all the answers

    Study Notes

    Sampling Methods

    • The main purpose of stratified sampling is to divide the population into homogeneous subgroups (strata) to ensure each subgroup is adequately represented.

    Systematic Sampling

    • Systematic sampling is characterized by selecting every nth individual from a population, where n is a fixed interval.

    Cluster Sampling

    • The defining feature of cluster sampling is the division of the population into smaller groups or clusters, and then selecting a few clusters to represent the population.

    Multi-Stage Sampling

    • The primary goal of multi-stage sampling is to select a sample in multiple stages, starting with larger units and gradually moving to smaller units.

    Random Sampling

    • Random sampling entails selecting participants randomly from a population, ensuring each individual has an equal chance of being selected.

    Questionnaires in Social Science Research

    • The main objective of using a questionnaire in social science research is to gather self-reported data from participants.

    Types of Validity

    • Construct validity refers to how well a concept, idea, or behavior is transformed into a functioning reality.
    • Criterion-related validity measures how well a test or instrument correlates with a criterion, such as a gold standard or a future outcome.

    Establishing Reliability

    • The aim of using the test-retest or stability test method is to establish reliability by demonstrating that the instrument yields consistent results over time.

    Instrument Sensitivity

    • An instrument demonstrates sensitivity if it is able to detect subtle changes or differences in the variables being measured.

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    Description

    This quiz covers the process of determining the locale of the study and selecting respondents or participants for a research study. It includes the elements of location, total population, and types of sampling designs such as probability and non-probability, with a focus on (simple) random sampling.

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