Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Application of the Delphi Method for the Design and Content Validity Analysis of a Questionnaire to Determine the Risk Factors of the Chemsex

Pablo Del Pozo-Herce
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Antonio Martínez-Sabater
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Elena Chover-Sierra
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Vicente Gea-Caballero
,
Pedro José Satústegui-Dordá
ORCID logo ,
Carles Saus-Ortega
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Clara Isabel Tejada-Garrido
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Mercedes Sánchez-Barba
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Jesús Pérez
,
Raúl Juárez-Vela
* ORCID logo ,
Iván Santolalla-Arnedo
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Enrique Baca-García
Version 1 : Received: 8 August 2023 / Approved: 9 August 2023 / Online: 9 August 2023 (10:34:43 CEST)

A peer-reviewed article of this Preprint also exists.

del Pozo-Herce, P.; Martínez-Sabater, A.; Chover-Sierra, E.; Gea-Caballero, V.; Satústegui-Dordá, P.J.; Saus-Ortega, C.; Tejada-Garrido, C.I.; Sánchez-Barba, M.; Pérez, J.; Juárez-Vela, R.; et al. Application of the Delphi Method for Content Validity Analysis of a Questionnaire to Determine the Risk Factors of the Chemsex. Healthcare 2023, 11, 2905, doi:10.3390/healthcare11212905. del Pozo-Herce, P.; Martínez-Sabater, A.; Chover-Sierra, E.; Gea-Caballero, V.; Satústegui-Dordá, P.J.; Saus-Ortega, C.; Tejada-Garrido, C.I.; Sánchez-Barba, M.; Pérez, J.; Juárez-Vela, R.; et al. Application of the Delphi Method for Content Validity Analysis of a Questionnaire to Determine the Risk Factors of the Chemsex. Healthcare 2023, 11, 2905, doi:10.3390/healthcare11212905.

Abstract

Background: The aim of this study was to design and analyze the content validity of an instrument to assess the risk of behaviors associated with the Chemsex phenomenon since there is currently no instrument with this objective. Method: Firstly, a bank of items identified from the literature was elaborated. Secondly, 50 experts with knowledge of the Chemsex phenomenon at the national level were contacted. A Delphi group was formed with them to carry out two rounds of item evaluation (comprehension and appropriateness) using a Likert scale of 1 to 5. To assess linguistic validity, the mean score of the item comprehension scores was used. The content validity index (CVI) and Aiken's V (VdA) were calculated for each item. A minimum value of CVI and VdA of 0.6 was established to include the items in the questionnaire. Results: In the first round of evaluation, 36 experts evaluated 114 items, of which 61 were selected. In a second round, 30 experts evaluated the 61 items selected, leaving the scale finally made up of 52 items. Conclusion: A questionnaire has been designed to assess the risk of behaviors associated with the Chemsex phenomenon. The items that make up the questionnaire have shown adequate content and linguistic validity, so this instrument can be considered valid. The Delphi method proved to be a useful technique for the proposed objective.

Keywords

Delphi technique; Expert consensus; Validity; Experts judgment; psychometrics

Subject

Medicine and Pharmacology, Psychiatry and Mental Health

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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