F first cannabis use was 5.97 (SD2.06; range20). At baseline, participants reported
F initial cannabis use was five.97 (SD2.06; range20). At baseline, participants reported using cannabis 790 (M70.0, SD20.0) days within the previous 90 days. All participants endorsed a minimum of weekly pastmonth use (with 8.four endorsing everyday use) and 68.eight met DSMIVTR criteria for cannabis dependence and eight.three met criteria for cannabis abuse. Per DSMIVTR (APA, 2000), respondents meeting criteria for each abuse and dependence had been classified as dependence only. Criteria to get a cannabis dependence had been consistent with DSMIV (APA, 2000) using the addition of withdrawal as proposed for DSM5 (APA, 203). The majority (94.6 ) met DSMIV criteria for an Axis I disorder and 58. met criteria for at the least two issues. Principal diagnoses integrated cannabis dependence (48.9 ), social anxiety disorder (9.6 ), cannabis abuse (8.7 ), alcohol use disorder (7.six ), depressive disorder (three.three ), generalized anxiousness disorder (two.two ), PTSD (. ), and precise phobia (. ). 2.2 Baseline Measures Diagnoses have been determined through the Structured Clinical Interview for DSM Disorders (1st et al 2007) administered by trained clinical psychology graduate students and reviewed with a licensed clinical psychologist. Diagnostic reliability of principal CUD diagnoses was established by comparing original diagnoses with diagnoses produced for any randomly selected 20 in the sample by educated students blind to initial diagnoses. % agreement was 92.three . Frequency of cannabis use for the duration of the 90 days before baseline was assessed together with the Timeline Adhere to Back (Sobell and Sobell, 996). Participants reported for every single day how numerous cigarettesized joints of cannabis they used. This measure has demonstrated good psychometrics (FalsStewart et al 2000). 2.three EMA Measures EMA assessments have been completed on a personal desk assistant (PDA) using Satellite Forms five.two by Pumatech. Three types of assessments have been collected from all participants (Wheeler and Reis, 99): signal contingent (in response to a signal from the PDA at six semirandom times within 20 minutes from the following anchor instances: 9:20am, :40am, :00pm, 3:20pm,NIHPA Author Manuscript NIHPA Author Manuscript NIHPA Author ManuscriptDrug Alcohol Depend. Author manuscript; out there in PMC 206 February 0.Buckner et al.Page5:40pm, and 7:20pm), interval contingent (at bedtime), and event contingent (quickly before working with cannabis). Exactly the same queries had been presented irrespective of assessment PubMed ID:https://www.ncbi.nlm.nih.gov/pubmed/28515341 form.NIHPA Author Manuscript NIHPA Author Manuscript NIHPA Author ManuscriptMarijuana Withdrawal Checklist (Budney et al 2003) assessed 5 withdrawal symptoms through participants’ most recent period of abstinence from 0 (not at all) to three (serious). This measure has been successfully adapted for use in EMA, with superior internal consistency (Buckner et al 203). Internal consistency inside the current sample was superior (.87). Momentary cannabis craving was rated from 0 (no urge) to 0 (intense urge) as in prior EMA work (Buckner et al 202a, 203). This scale strongly correlated with the 4 factors of Marijuana Craving Questionnaire (Fumarate hydratase-IN-1 web Heishman et al 200) in prior perform (Buckner et al 20). Optimistic and Negative Affect Scale (Watson et al 988) consists in the positive and unfavorable affect subscales every consisting of 0 feelings. Participants rated every emotion felt inside the moment from (very slightly or not at all) to five (very). Scales have accomplished acceptable internal consistency in EMA function (Buckner et al 203). Internal consistency in the current sample was outstanding (unfavorable affec.