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Tag Archives: statistics

Does Reality Drive Straight Lines On Graphs, Or Do Straight Lines On Graphs Drive Reality?

Here’s a graph of US air pollution over time: During the discussion of 90s environmentalism, some people pointed out that this showed the Clean Air Act didn’t matter. The trend is the same before the Act as after it. This … Continue reading

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In Search Of Missing US Suicides

[Content warning: suicide. Thanks to someone on Twitter I forget for alerting me to this question] Among US states, there’s a clear relationship between gun ownership rates and suicide rates, but not between gun ownership rates and homicide rates: You … Continue reading

Why DC’s Low Graduation Rates?

[Some changes to the conclusions in this post; see edit at the end and entry 21 on Mistakes page] US News: DC Schools Brace For Catastrophic Drop In Graduation Rates. “Catastrophic” isn’t hyperbole; the numbers are expected to drop from … Continue reading

SSC Journal Club: Cipriani On Antidepressants

I. The big news in psychiatry this month is Cipriani et al’s Comparative efficacy and acceptability of 21 antidepressant drugs for the acute treatment of adults with major depressive disorder: a systematic review and network meta-analysis. It purports to be … Continue reading

SSC Survey Results 2018

Thanks to the 8,077 people (!) who took this year’s SSC survey. I don’t have the energy to screenshot/copy/paste the graph for every single question the way I have in previous years, so let’s do it differently. The survey page … Continue reading

Preregistration Of Hypotheses For The SSC Survey

[This post is about the 2018 SSC Survey. If you’ve read at least one blog post here before, please take the survey if you haven’t already. Please don’t read on until you’ve taken it, since this could bias your results.] … Continue reading

Change Minds Or Drive Turnout?

I. Current Affairs: The Democratic Party Just Admitted It Doesn’t Stand For Anything. Overall it makes some good points, but one passage caught my eye: [Democrats believe that if you moderate your platform and swing toward the center] you might … Continue reading

SSC Journal Club: Childhood Trauma And Cognition

This month’s American Journal of Psychiatry includes Danese et al, Origins Of Cognitive Deficits In Victimized Children. Previous studies had found that abused children had lower IQ. They concluded that the severe stress of being abused must decrease brain function. … Continue reading

SSC Survey 2017 Results

[None of these calculations were really double-checked and some of them might be wrong. If you’re really interested in accuracy, download the raw data at the bottom and see for yourself.] I. Back in January I asked you to take … Continue reading

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Antidepressant Pharmacogenomics: Much More Than You Wanted To Know

[Epistemic status: very uncertain. Not to be taken as medical advice. Talk to your doctor before deciding whether or not to get any tests.] I. There are many antidepressants in common use. With a few exceptions, none are globally better … Continue reading