Podcast
Questions and Answers
What is the main purpose of stratified sampling?
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?
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?
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?
What is the primary goal of multi-stage sampling?
What does random sampling entail?
What does random sampling entail?
What is the main objective of using a questionnaire in social science research?
What is the main objective of using a questionnaire in social science research?
Which type of validity refers to how well a concept, idea, or behavior is transformed into a functioning reality?
Which type of validity refers to how well a concept, idea, or behavior is transformed into a functioning reality?
What does the criterion-related validity measure indicate?
What does the criterion-related validity measure indicate?
What is the aim of using the test-retest or stability test method in establishing reliability?
What is the aim of using the test-retest or stability test method in establishing reliability?
What should an instrument be able to do to demonstrate sensitivity?
What should an instrument be able to do to demonstrate sensitivity?
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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
- 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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