Elementary Statistics Unit 2: Data Collection & Sampling
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Questions and Answers

What is the main characteristic of Snowball Sampling?

  • Research participants recruit other members for the study. (correct)
  • Participants are selected based on specific criteria.
  • Participants are randomly selected from the population.
  • Researchers select participants who are easily accessible.

When is Snowball Sampling particularly useful?

  • When participants are easily accessible.
  • When participants might be hard to find. (correct)
  • When participants are randomly selected.
  • When participants belong to a specific demographic.

Which sampling technique involves selecting participants based on a specific characteristic or trait?

  • Simple Random Sampling
  • Convenience Sampling
  • Cluster Sampling
  • Stratified Sampling (correct)

What differentiates Systematic Sampling from Simple Random Sampling?

<p>Systematic Sampling involves selecting participants at regular intervals. (C)</p> Signup and view all the answers

In which sampling technique do researchers select participants purely based on their availability and accessibility?

<p>Convenience Sampling (B)</p> Signup and view all the answers

What is a key advantage of Simple Random Sampling?

<p>It ensures representation of various population segments. (A)</p> Signup and view all the answers

What is the main drawback of convenience sampling?

<p>It lacks objectivity (D)</p> Signup and view all the answers

What is the key characteristic of quota sampling?

<p>Determination of proportions for subgroups in the population (A)</p> Signup and view all the answers

What is the basis for selecting respondents in purposive sampling?

<p>Satisfaction of specific criteria (D)</p> Signup and view all the answers

Why might a researcher choose convenience sampling?

<p>For ease and convenience (D)</p> Signup and view all the answers

Which sampling method involves drawing a sample that mirrors the proportions of subgroups in the population?

<p>Quota Sampling (B)</p> Signup and view all the answers

What distinguishes purposive sampling from other sampling methods?

<p>Selection based on specific criteria set by researchers (D)</p> Signup and view all the answers

What is the primary focus of Statistics as discussed in the text?

<p>Collection, presentation, analysis, and interpretation of data (A)</p> Signup and view all the answers

Why is it important to determine a sample size in a population?

<p>To ensure the study is representative of the population (C)</p> Signup and view all the answers

What is the significance of learning different sampling techniques?

<p>To gather data more effectively and choose samples scientifically (C)</p> Signup and view all the answers

Which of the following is NOT a reason for learning both probability and non-probability sampling techniques?

<p>To choose samples randomly (B)</p> Signup and view all the answers

What is the key learning outcome related to data collection methods in this unit?

<p>Identifying types of data collection methods for researches (D)</p> Signup and view all the answers

Why is it necessary to apply the appropriate sampling technique during data collection?

<p>To guarantee the representativeness of the sample collected (A)</p> Signup and view all the answers

Flashcards

Snowball Sampling Characteristic

Participants recruit other members for the study.

When to use Snowball Sampling

When participants are hard to find directly.

Stratified Sampling

Selecting participants based on a specific trait.

Systematic Sampling

Selecting participants at regular intervals (e.g., every nth person).

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Convenience Sampling

Selecting participants based on availability and accessibility.

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Advantage of Simple Random Sampling

Ensures representation of population segments.

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Drawback of Convenience Sampling

Lacks objectivity and may not represent the population well.

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Key Characteristic of Quota Sampling

Determining proportions for subgroups in the population.

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Basis for Purposive Sampling

Selection based on specific criteria set by researchers.

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Why choose Convenience Sampling?

For ease and convenience.

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Quota Sampling

Mirrors the proportions of subgroups in the population.

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What distinguishes Purposive Sampling?

Selection based on specific criteria set by researchers.

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Primary Focus of Statistics

Collection, presentation, analysis, and interpretation of data.

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Importance of Sample Size

To ensure the study is representative of the population.

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Significance of Learning Sampling Techniques

To gather data more effectively and choose samples scientifically.

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NOT a reason for learning probability and non-probability sampling

To choose samples randomly.

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Key learning outcome related to data collection methods

Identifying types of data collection methods for researches.

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Why apply the appropriate sampling technique?

To guarantee the representativeness of the sample collected.

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