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How was the sample of young adults collected because I did not receive the survey?

The sample was collected statewide through a direct mail invitation and various social media sites, and includes a new sample/cohort at each year as well as annual follow-ups within cohorts. [...]

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Why should I wait 6-8 hours before driving?

Driving under the influence of alcohol is easy to test and measure because of breathalyzers – unfortunately these are not available yet for marijuana.  While a marijuana DUI can be verified [...]

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What do studies really say about driving and marijuana?

This is tricky, since much research on marijuana and driving is, out of necessity, not truly “in real life.” Many of these contradictory studies tested Marijuana in low potencies nowhere [...]

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Do people tell the truth on these surveys?

While there are always potential threats to the accuracy of self-report data, there are a number of things that can be done to boost the meaningfulness of data that are collected.  This includes [...]

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Is 786 a valid sample size?

It’s always good to be critical of survey stats, especially surrounding sample size and collection method. This survey used multiple methods of recruiting to ensure the sample reflected the [...]

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Where’d you get these stats from?

These findings from 18-25 year olds in Washington were from the 2018 administration of the Washington Young Adult Health Survey and reflect the 786 participants from that year’s survey who [...]