2.6.4 Main Takeaways on Validation and Verification
Course subject(s)
Module 2. Phases & Methods of Scientific Research
Validation and Verification are needed to add credibility to your results and conclusions, to allow your results to be used in a professional environment, and to allow for academic reproducibility and transparency.
Validation is proving that your outcomes are true and based on strong (scientific) evidence – Quality Assurance Process. Validity in research is the best available approximation to the truth of a given proposition, inference or conclusion.
Verification is proving that your method of research has been used in the way intended and is suitable for your research topic – Quality Control Process.
Types of Validity:
- Conclusion validity: in a research study, is there a relationship between two variables identified?
- Internal validity: if so is the relationship a causal one?
- Construct validity: given a causal relationship, did the operationalisation of the theoretical constructs reflect the ideal – typically were you able to measure what you wanted to capture?
- External validity: given the causal relation between the constructs of cause and effect, can you generalise this effect to other persons, cases, times or places etc.?
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