Development and initial validation of a reliable German self‐report measure to assess acute cannabis intoxication‐effects (CanTox‐17)
Abstract Objectives Both positive and negative including psychotic‐like cannabis intoxication effects are well‐established. Yet, consequences for consumption patterns, addictive behavior or psychotic developments are poorly researched in general, in Germany not at all. Thus, objective was to develop...
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| Format: | Article |
| Language: | English |
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Wiley
2022-09-01
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| Series: | International Journal of Methods in Psychiatric Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/mpr.1925 |
| _version_ | 1798003215940190208 |
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| author | Merle Schüler Steffen Moritz Thomas Schnell |
| author_facet | Merle Schüler Steffen Moritz Thomas Schnell |
| author_sort | Merle Schüler |
| collection | DOAJ |
| description | Abstract Objectives Both positive and negative including psychotic‐like cannabis intoxication effects are well‐established. Yet, consequences for consumption patterns, addictive behavior or psychotic developments are poorly researched in general, in Germany not at all. Thus, objective was to develop the first German‐language questionnaire operationalizing acute cannabis intoxication effects, based on the original “Cannabis Experience Questionnaire” (CEQ). Methods After expert translation of the CEQ, items related to acute intoxication effects were presented to a sample of 537 cannabis users. Four‐ and five‐factorial solutions of explorative factor analysis with a randomly split sub‐sample 1 were cross‐validated by confirmatory factor analysis on sub‐sample 2. Results After content review of factors and analysis of external validity, a 17 item four‐factorial model was approved. Factors are (1) “paranoia/dysphoria”, (2) “confusion/disorientation”, (3) “euphoria/creativity”, (4) “psychosis‐like/loss of reality”. Model fit is satisfactory (RMSEA = 0.058, SRMR = 0.065, CFI = 0.929, TLI = 0.914). Correlations with corresponding external measures support construct validity. Conclusions The present questionnaire is a time‐efficient, valid and reliable instrument. Thus, predictors of different cannabis intoxication effects can be analysed for the first time in German‐speaking area, as well as their significance for substance use or psychosis risk. |
| first_indexed | 2024-04-11T12:04:19Z |
| format | Article |
| id | doaj.art-bc47d9f223844e40bc2d388bfdfdaf14 |
| institution | Directory Open Access Journal |
| issn | 1049-8931 1557-0657 |
| language | English |
| last_indexed | 2024-04-11T12:04:19Z |
| publishDate | 2022-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Methods in Psychiatric Research |
| spelling | doaj.art-bc47d9f223844e40bc2d388bfdfdaf142022-12-22T04:24:46ZengWileyInternational Journal of Methods in Psychiatric Research1049-89311557-06572022-09-01313n/an/a10.1002/mpr.1925Development and initial validation of a reliable German self‐report measure to assess acute cannabis intoxication‐effects (CanTox‐17)Merle Schüler0Steffen Moritz1Thomas Schnell2Medical School Hamburg University of Applied Sciences and Medical University Hamburg GermanyDepartment of Psychiatry and Psychotherapy University Medical Center Hamburg‐Eppendorf Hamburg GermanyMedical School Hamburg University of Applied Sciences and Medical University Hamburg GermanyAbstract Objectives Both positive and negative including psychotic‐like cannabis intoxication effects are well‐established. Yet, consequences for consumption patterns, addictive behavior or psychotic developments are poorly researched in general, in Germany not at all. Thus, objective was to develop the first German‐language questionnaire operationalizing acute cannabis intoxication effects, based on the original “Cannabis Experience Questionnaire” (CEQ). Methods After expert translation of the CEQ, items related to acute intoxication effects were presented to a sample of 537 cannabis users. Four‐ and five‐factorial solutions of explorative factor analysis with a randomly split sub‐sample 1 were cross‐validated by confirmatory factor analysis on sub‐sample 2. Results After content review of factors and analysis of external validity, a 17 item four‐factorial model was approved. Factors are (1) “paranoia/dysphoria”, (2) “confusion/disorientation”, (3) “euphoria/creativity”, (4) “psychosis‐like/loss of reality”. Model fit is satisfactory (RMSEA = 0.058, SRMR = 0.065, CFI = 0.929, TLI = 0.914). Correlations with corresponding external measures support construct validity. Conclusions The present questionnaire is a time‐efficient, valid and reliable instrument. Thus, predictors of different cannabis intoxication effects can be analysed for the first time in German‐speaking area, as well as their significance for substance use or psychosis risk.https://doi.org/10.1002/mpr.1925cannabisintoxicationpsychosisquestionnairesubstance use disorder |
| spellingShingle | Merle Schüler Steffen Moritz Thomas Schnell Development and initial validation of a reliable German self‐report measure to assess acute cannabis intoxication‐effects (CanTox‐17) International Journal of Methods in Psychiatric Research cannabis intoxication psychosis questionnaire substance use disorder |
| title | Development and initial validation of a reliable German self‐report measure to assess acute cannabis intoxication‐effects (CanTox‐17) |
| title_full | Development and initial validation of a reliable German self‐report measure to assess acute cannabis intoxication‐effects (CanTox‐17) |
| title_fullStr | Development and initial validation of a reliable German self‐report measure to assess acute cannabis intoxication‐effects (CanTox‐17) |
| title_full_unstemmed | Development and initial validation of a reliable German self‐report measure to assess acute cannabis intoxication‐effects (CanTox‐17) |
| title_short | Development and initial validation of a reliable German self‐report measure to assess acute cannabis intoxication‐effects (CanTox‐17) |
| title_sort | development and initial validation of a reliable german self report measure to assess acute cannabis intoxication effects cantox 17 |
| topic | cannabis intoxication psychosis questionnaire substance use disorder |
| url | https://doi.org/10.1002/mpr.1925 |
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