Why doesn't this exist? If it does, where is it? I want a tool not unlike gapminder that takes summary statistics from tons of studies and allows me to mash them together. Traditionally, this has been done with meta-analyses which are studies of studies that compare these outcomes and using different weights and probably other things (you want me to read wikipedia on this?) to come up with some sort of broad conclusion based on all the evidence. Granted, this may not be as scientifically sound, but hey, everyone's doing homemade ecological studies (these are the gapminder kind) and I don't see anyone cryin'. Here's the experience (for anyone I haven't lost) I have a kid who hates to wear his seatbelt (hypothetical here of course). I think what are the actual risks if you don't wear a seatbelt . So I look up the Meta-analysis explorer under seat-belts for kids and I narrow it down to around his age range and I get some statistic like, A kid in the US who does...
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