Podcast
Questions and Answers
A researcher aims to measure customer satisfaction using a survey. To ensure the survey questions genuinely reflect customer satisfaction, which type of validity is most important?
A researcher aims to measure customer satisfaction using a survey. To ensure the survey questions genuinely reflect customer satisfaction, which type of validity is most important?
- Face validity (correct)
- Construct validity
- Criterion validity
- Ecological validity
In a study examining the effect of a new teaching method, students' improved performance might be attributed to increased familiarity with testing. Which threat to internal validity does this scenario exemplify?
In a study examining the effect of a new teaching method, students' improved performance might be attributed to increased familiarity with testing. Which threat to internal validity does this scenario exemplify?
- History
- Maturation
- Testing (correct)
- Instrumentation
Which level of measurement is exemplified by ranking a company's customer service performance as 'poor', 'average', 'good', and 'excellent'?
Which level of measurement is exemplified by ranking a company's customer service performance as 'poor', 'average', 'good', and 'excellent'?
- Ratio
- Interval
- Nominal
- Ordinal (correct)
A researcher is conducting a study on stress levels of nurses in a large hospital. Due to time constraints, they select nurses who are easily accessible from one particular unit. What type of sampling is the researcher using?
A researcher is conducting a study on stress levels of nurses in a large hospital. Due to time constraints, they select nurses who are easily accessible from one particular unit. What type of sampling is the researcher using?
What is the primary goal when using stratified sampling?
What is the primary goal when using stratified sampling?
Which of the following methods assesses the consistency of results across different parts of the same test?
Which of the following methods assesses the consistency of results across different parts of the same test?
A study found that participants changed their behavior simply because they knew they were being observed. Which of the following effects does this describe?
A study found that participants changed their behavior simply because they knew they were being observed. Which of the following effects does this describe?
Which of the following is most directly affected by increasing the sample size in a research study?
Which of the following is most directly affected by increasing the sample size in a research study?
What is the relationship between confidence level and confidence interval?
What is the relationship between confidence level and confidence interval?
A researcher wants to generalize findings from a lab study to real-world settings. Which type of validity is most relevant to this goal?
A researcher wants to generalize findings from a lab study to real-world settings. Which type of validity is most relevant to this goal?
Flashcards
Operational vs. Conceptual Definitions
Operational vs. Conceptual Definitions
A definition that explains a concept in terms of how it is measured, while a conceptual definition explains what the concept means.
Conceptual Fit
Conceptual Fit
The degree to which a researcher's measurement of a construct truly and accurately represents that construct.
Levels of Measurement
Levels of Measurement
Scales that classify data into distinct categories with no inherent order (Nominal), ordered categories (Ordinal), equal intervals (Interval), and a true zero point (Ratio).
Likert & Semantic Differential Scales
Likert & Semantic Differential Scales
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Reliability
Reliability
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Validity
Validity
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Threats to Validity
Threats to Validity
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Ecological Validity
Ecological Validity
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Population, Sampling Frame, & Sample
Population, Sampling Frame, & Sample
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Non-Probability Sampling
Non-Probability Sampling
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Study Notes
Chapter 5
- Operational and conceptual definitions exist
- Conceptual fit is relevant
- Levels of measurement include nominal, ordinal, interval, and ratio
- Likert and semantic differential scales are present
- Reliability types are test-retest, alternate form, split-half, and internal
- Validity types are face, criterion, and construct
- Threats to internal and external validity: history, Hawthorne effect, maturation, testing, instrumentation
- Ecological validity is a factor
Chapter 6
- Population, sampling frame, and sample are important
- Simple, systematic, stratified, and cluster are types of sampling
- Convenience, volunteer, network, snowball, inclusion/exclusion, quota, and purposive are sampling methods
- Increasing sample size has effects
- Margin of error/sampling error is present
- Confidence interval is important
- Confidence level is also important
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