Aims To assess the reliability and validity of self‐reported cannabis dose and potency
measures. Design Cross‐sectional study comparing self‐reports with objective measures of …

Aims (1) To determine whether measured concentrations of delta‐9‐tetrahydrocannabinol
(THC) and cannabidiol (CBD) in individuals' own cannabis predict their estimates of drug …

Abstract Background and Aims Increased delta‐9‐tetrahydrocannabinol (THC)
concentrations in cannabis may lead to higher THC exposure, cannabis dependence and …

AIMS: To determine whether a classification of cannabis users into different types can help
to clarify the relationship between cannabis potency and consumption behaviour, harmful …

Aims To evaluate the agreement between adolescent self‐reported cannabis use,“on‐site”
qualitative urine screening, and quantitative laboratory testing. Design A cross‐sectional …

Background Quantifying cannabis use is complex due to a lack of a standardized packaging
system that contains specified amounts of constituents. A laboratory procedure has been …

Background Research shows that cannabis use frequency is associated with cannabis
dependence and health metrics. However, much less is known about how self-reported …

Cannabis self-administration studies may be helpful for identifying factors that influence
cannabis consumption and subjective response to cannabis. Additionally, these paradigms …

Objective: Research typically characterizes cannabis use by self-report of cannabis intake
frequency. In an effort to better understand relationships between measures of cannabis …

Collecting information about the prevalence of cannabis use is necessary but not sufficient
for understanding the size, dynamics, and outcomes associated with cannabis markets. This …