How to to judge if a test has CONSTRUCT VALIDITY

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BrownieLover
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Hi. If you have a psychometric test, for example an intelligence test and are asked to test its validity in a question -
how do you test its construct validity?

Thanks a lot in advance for any help.
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_Sinnie_
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Is this an A-level question? Do you have an example? Would it be asking for the exact procedure that you would use? Testing construct validity for a psychometric, especially a cognitive assessment, is quite complex. Is it instead asking about convergent and discriminant validity and then criterion and content validity and what they mean?
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BrownieLover
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(Original post by _Sinnie_)
Is this an A-level question? Do you have an example? Would it be asking for the exact procedure that you would use? Testing construct validity for a psychometric, especially a cognitive assessment, is quite complex. Is it instead asking about convergent and discriminant validity and then criterion and content validity and what they mean?
Hi, thanks for trying to offer your assistance!
Yes it is an A level question.

It would be like:

Suggest how you would test the reliability and validity of this psychometric test.

I do realise I can do concurrent and predictive and face validity, but I was wondering how I would do construct validity, because there was one question that ONLY asked about testing validity (without reliability) so you would need to include more than just three types.

Are you a university student?
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_Sinnie_
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(Original post by BrownieLover)
Hi, thanks for trying to offer your assistance!
Yes it is an A level question.

It would be like:

Suggest how you would test the reliability and validity of this psychometric test.

I do realise I can do concurrent and predictive and face validity, but I was wondering how I would do construct validity, because there was one question that ONLY asked about testing validity (without reliability) so you would need to include more than just three types.

Are you a university student?
I'm not really sure I can answer your question, I'm so far removed from what is required at A-level that I don't want to start talking about all manner of stats that are far beyond what is required to answer that question to an A-level standard. I'm an Assistant Psychologist, so haven't worked in this way for a long time.

I have the manual for a cognitive assessment which discusses what they did for validity, but I'm not sure its relevant to your question - might be best if someone who knows more how to answer your question does that first and then I'll add anything if its needed.
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