Quantifying cannabis: A field study of marijuana quantity estimation.

Quantifying cannabis: A field study of marijuana quantity estimation.
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DOI:
10.1037/adb0000370
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发表时间:
2018-06
期刊:
Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors
影响因子:
--
通讯作者:
Pearson MR
Pearson MR
中科院分区:
其他
文献类型:
--
作者:
Prince MA;Conner BT;Pearson MR

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The assessment of marijuana use quantity poses unique challenges. These challenges have limited research efforts on quantity assessments. However, quantity estimates are critical to detecting associations between marijuana use and outcomes. We examined accuracy of marijuana users’ estimations of quantities of marijuana they prepared to ingest and predictors of both how much was prepared for a single dose and the degree of (in)accuracy of participants’ estimates. We recruited a sample of 128 regular-to-heavy marijuana users for a field study wherein they prepared and estimated quantities of marijuana flower in a joint or a bowl as well as marijuana concentrate using a dab tool. The vast majority of participants overestimated the quantity of marijuana that they used in their preparations. We failed to find robust predictors of estimation accuracy. Self-reported quantity estimates are inaccurate which has implications for studying the link between quantity and marijuana use outcomes.
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