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A comment on Regular cannabis use were associated with poorer cognitive performance. Parent comment

Re:Regular cannabis use were associated with poorer cognitiv... by edmundsauto on Thursday September 03, 2020 @10:01PM (#24371027)
Easy personal solution is to accept the serious limitations of studies like this. Harder scientific solution is to implement a well designed cohort study that follows people over 20+ years.

That's how we know about cardiovascular health. Framingham cohort study.

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Re:Regular cannabis use were associated with poorer cognitiv... by alextheparrot on Thursday September 03, 2020 @10:36PM (#24371201)
I haven’t really vetted this study, but it samples IQ prior to use at 9-12 and after use at 17-20 among twins [0]. It concludes that there is no link between IQ scores and usage. More of a “For your interest” reference.

Your overall comment is spot on, just because designing a good study is hard does not mean we should accept poorly designed studies as good science. Agency risk unaddressed, science should seek to find the solution to a question rather than an answer.

[0] https://www.pnas.org/content/113/5/E500

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