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10 months ago in Data collection , Psychology , Qualitative Analysis By GeorgeNeire
What evidence will you provide to demonstrate that your measurement tool accurately captures the theoretical constructs it is supposed to measure?
I’ve developed my measurement instruments, but reviewers will rightly demand robust validation. I understand I need to provide evidence beyond just stating "these questions look right." What are the accepted empirical and statistical avenues for demonstrating that my scores genuinely reflect the underlying theoretical constructs?
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By Isaac Answered 4 months ago
You’re right to look beyond face validity. I would recommend a three-pronged approach. First, establish convergent and discriminant validity: your tool’s scores should correlate strongly with scores from established measures of similar constructs (convergent) and weakly with measures of distinct constructs (discriminant). Second, use factor analysis to statistically confirm your proposed question groupings align with your theoretical structure. Finally, where possible, test for criterion validity can your scores predict a relevant, real-world outcome? This layered statistical argument is what scholars trust.
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