Reliability and Validity

The video tutorial explores the concepts of reliability and validity in psychological research. Reliability refers to the consistency of a study or test, while validity concerns whether the data truly represents what it claims to. The tutorial explains internal and external reliability, as well as internal and external validity. It also covers various types of validity, including face, construct, concurrent, predictive, and ecological validity. The importance of these concepts in evaluating research methods and their trade-offs is discussed, with examples from famous studies. The video concludes with a summary and tips for understanding these key concepts.

What are the two key concepts that help determine the trustworthiness of psychological research findings?

• Reliability and Validity

• Truth and Belief

• Accuracy and Precision

• Consistency and Relevance

Which method is used to assess internal reliability?

• Face validity

• Split-half method

• Ecological validity

• Test-retest method

What does external reliability refer to?

• Consistency within a single test

• Consistency over time when repeated

• Generalizability of the results

• Accuracy of the test results

What type of validity asks if a test measures what it claims to measure?

• Construct validity

• Concurrent validity

• Face validity

• Predictive validity

Which type of validity is concerned with the generalizability of results to different settings?

• Internal validity

• Ecological validity

• Face validity

• Concurrent validity

What is a common challenge in psychological research regarding reliability and validity?

• Securing funding

• Ensuring ethical standards

• Finding enough participants

• Achieving both complete reliability and validity simultaneously

In the context of psychological research, what might researchers have to trade-off?

• Reliability for validity

• Speed for thoroughness

• Accuracy for precision

• Ethics for results