Drug consumption, collected online March 2011 to March 2012, English-speaking countries (ICPSR 36536)

Published: Sep 9, 2016

Principal Investigator(s):
Elaine Fehrman, Men's Personality Disorder and National Women's Directorate, Rampton Hospital; Vincent Egan, Department of Psychiatry and Applied Psychology, University of Nottingham


Version V1

The data collection is an online survey of respondents aged 18 and over from English-speaking countries concerning their personality attributes, demographic information, and their use of legal and illegal drugs. Twelve personality attributes were measured by questionnaires including the NEO-FFI-R (neuroticism, extraversion, openness to experience, agreeableness, and conscientiousness), BIS-11 (impulsivity), and ImpSS (sensation seeking). Participants were questioned regarding their use of 18 legal and illegal drugs (alcohol, amphetamines, amyl nitrite, benzodiazepine, cannabis, chocolate, cocaine, caffeine, crack, ecstasy, heroin, ketamine, legal highs, LSD, methadone, mushrooms, nicotine, and volatile substance abuse) and one fictitious drug (Semeron) which was used to identify over-claimers. Demographic variables include level of education, age, gender, country of residence, and ethnicity.

Fehrman, Elaine, and Egan, Vincent. Drug consumption, collected online March 2011 to March 2012, English-speaking countries. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2016-09-09. https://doi.org/10.3886/ICPSR36536.v1

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2011-03 -- 2012-03

2011-03 -- 2012-03

For additional information on the survey methodology utilized in this collection, please see the related publication "The Five Factor Model of personality and evaluation of drug consumption risk."

An online survey tool from Survey Gizmo was used to gather the data.

To assess the relationship between personality measurements and the frequency and recency of drug use in the evaluation of drug consumption risk.

A usable sample of 1885 participants was recruited using a snowball sampling methodology. For more information on sampling, please see the Original P.I. Documentation section of the ICPSR Codebook.


Former and current consumers of drugs aged 18 and over in certain English-speaking countries


survey data

web-based survey


NEO-FFI-R questionnaire, BIS-11 questionnaire and ImpSS questionnaire



2016-09-09 ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

  • Created variable labels and/or value labels.
  • Created online analysis version with question text.
  • Checked for undocumented or out-of-range codes.

The data are not weighted.


  • Data in this collection are available only to users at ICPSR member institutions.

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This study is provided by ICPSR. ICPSR provides leadership and training in data access, curation, and methods of analysis for a diverse and expanding social science research community.