Chunk #16 — Method — Measurement of Externalizing Phenotypes — Cannabis Use

Source

Alcohol-related genes show an enrichment of associations with a persistent externalizing factor.

Embedded

yes

Text

One item assessed cannabis use: “During the last 3 months, how many times did you smoke marijuana?” The available responses were: 0 = 0 times, 1 = 1 time, 2 = 2 times, 3 = 3–5 times, 4 = 6–10 times, 5 = 11–20 times, 6 = >20 times.