Measuring cannabis quantities in online surveys: A rapid review and proposals for ways forward
Abstract Objectives Cannabis use quantities are relevant for determining cannabis‐related harms. This research aims to provide an overview of the available methods to assess quantities through self‐report. Methods A rapid review of various strategies to collect information on cannabis use quantities...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-09-01
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| Series: | International Journal of Methods in Psychiatric Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/mpr.1971 |
| _version_ | 1827822333598892032 |
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| author | Jakob Manthey Maria Teresa Pons‐Cabrera Moritz Rosenkranz Hugo Lopez‐Pelayo |
| author_facet | Jakob Manthey Maria Teresa Pons‐Cabrera Moritz Rosenkranz Hugo Lopez‐Pelayo |
| author_sort | Jakob Manthey |
| collection | DOAJ |
| description | Abstract Objectives Cannabis use quantities are relevant for determining cannabis‐related harms. This research aims to provide an overview of the available methods to assess quantities through self‐report. Methods A rapid review of various strategies to collect information on cannabis use quantities through self‐report. Two independent literature searches resulted in n = 38 studies included for review. Results A total of n = 14 studies employed methods for collecting cannabis use quantities that are not suitable for online surveys (e.g., rolling a fake joint). Of the remaining n = 24 studies with items that are suitable for online surveys, the quantity assessment was performed in three different ways. The data collection was either carried out by asking (a) for the total number of joints (i.e., crude joint method), (b) for the total weight (i.e., crude weight method), or (c) for specific products separately, for example, for the amount of flower and resin (i.e., product‐specific method). In only n = 8 studies, cannabis use quantities were ascertained by providing visual aids (e.g., illustration of various amounts of flower). Conclusions The crude joint method and the product‐specific method are the two most promising methods to collect information on cannabis use quantities. Using visual aids may potentially improve the accuracy of those methods. |
| first_indexed | 2024-03-12T01:56:34Z |
| format | Article |
| id | doaj.art-d4bbe4bb88f24db7aa4afcf77d2a1a1b |
| institution | Directory Open Access Journal |
| issn | 1049-8931 1557-0657 |
| language | English |
| last_indexed | 2024-03-12T01:56:34Z |
| publishDate | 2023-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Methods in Psychiatric Research |
| spelling | doaj.art-d4bbe4bb88f24db7aa4afcf77d2a1a1b2023-09-08T05:24:47ZengWileyInternational Journal of Methods in Psychiatric Research1049-89311557-06572023-09-01323n/an/a10.1002/mpr.1971Measuring cannabis quantities in online surveys: A rapid review and proposals for ways forwardJakob Manthey0Maria Teresa Pons‐Cabrera1Moritz Rosenkranz2Hugo Lopez‐Pelayo3Department of Psychiatry and Psychotherapy Center for Interdisciplinary Addiction Research (ZIS) University Medical Center Hamburg‐Eppendorf (UKE) Hamburg GermanyGrup de Recerca en Addicions Clínic Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) Unitat de Conductes Addictives Servei de Psiquiatria Psicologia (ICN) Hospital Clínic de Barcelona Barcelona SpainDepartment of Psychiatry and Psychotherapy Center for Interdisciplinary Addiction Research (ZIS) University Medical Center Hamburg‐Eppendorf (UKE) Hamburg GermanyGrup de Recerca en Addicions Clínic Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) Unitat de Conductes Addictives Servei de Psiquiatria Psicologia (ICN) Hospital Clínic de Barcelona Barcelona SpainAbstract Objectives Cannabis use quantities are relevant for determining cannabis‐related harms. This research aims to provide an overview of the available methods to assess quantities through self‐report. Methods A rapid review of various strategies to collect information on cannabis use quantities through self‐report. Two independent literature searches resulted in n = 38 studies included for review. Results A total of n = 14 studies employed methods for collecting cannabis use quantities that are not suitable for online surveys (e.g., rolling a fake joint). Of the remaining n = 24 studies with items that are suitable for online surveys, the quantity assessment was performed in three different ways. The data collection was either carried out by asking (a) for the total number of joints (i.e., crude joint method), (b) for the total weight (i.e., crude weight method), or (c) for specific products separately, for example, for the amount of flower and resin (i.e., product‐specific method). In only n = 8 studies, cannabis use quantities were ascertained by providing visual aids (e.g., illustration of various amounts of flower). Conclusions The crude joint method and the product‐specific method are the two most promising methods to collect information on cannabis use quantities. Using visual aids may potentially improve the accuracy of those methods.https://doi.org/10.1002/mpr.1971cannabisitemquantitysurveyvisual aid |
| spellingShingle | Jakob Manthey Maria Teresa Pons‐Cabrera Moritz Rosenkranz Hugo Lopez‐Pelayo Measuring cannabis quantities in online surveys: A rapid review and proposals for ways forward International Journal of Methods in Psychiatric Research cannabis item quantity survey visual aid |
| title | Measuring cannabis quantities in online surveys: A rapid review and proposals for ways forward |
| title_full | Measuring cannabis quantities in online surveys: A rapid review and proposals for ways forward |
| title_fullStr | Measuring cannabis quantities in online surveys: A rapid review and proposals for ways forward |
| title_full_unstemmed | Measuring cannabis quantities in online surveys: A rapid review and proposals for ways forward |
| title_short | Measuring cannabis quantities in online surveys: A rapid review and proposals for ways forward |
| title_sort | measuring cannabis quantities in online surveys a rapid review and proposals for ways forward |
| topic | cannabis item quantity survey visual aid |
| url | https://doi.org/10.1002/mpr.1971 |
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