I don't think you could have gotten that less straight. What is convenient is that many definitions exist, so a convenient one can be chosen based on its suitability for making a particular argument at a particular time.
>They cover their methodology pretty clearly.
OK, but where do they suggest a rigorous definition of a support network, which is what I asked about?
So wait, let me get this straight
'I want an example of a study with data'
'here you go'
'well, well, well isn't that just convenient'
From here it feels like you're not approaching this argument in good faith.
> Where do they suggest a rigorous definition of a support group in that article?
They cover their methodology pretty clearly.