Abi Saab, Poeiti, Vielotte, Soléane, Vincent, Raphaël, Auger, Claudine, Latulippe, Karine 
ORCID: https://orcid.org/0000-0001-7998-6498, Daviet, Jean-Christophe et Mandigout, Stéphane
(2026).
Psychometric properties of the System Usability Scale for digital rehabilitation technologies: a COSMIN systematic review. Annals of Physical and Rehabilitation Medicine, 69 (7), 102172. 10.1016/j.rehab.2026.102172
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Contenu du fichier : Version de l'éditeur Accès restreint jusqu'à fin- 7 novembre 2026. |
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| Catégorie de document : | Articles de revues |
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| Évaluation par un comité de lecture : | Oui |
| Étape de publication : | Publié |
| Résumé : | Background: The System Usability Scale (SUS) is widely used in the rehabilitation eld to assess the satisfaction dimension of digital technologies, although it was not speci cally developed for this context. Aims: This systematic review aims to synthesize and appraise the psychometric properties of the SUS in the con- text of rehabilitation digital technologies, identify its strengths and limitations, and provide evidence-based rec- ommendations for researchers and clinicians. Methods: We assessed methodological quality using the COSMIN Risk-of-Bias checklist (4-point scale), applying the“worst score counts” principle. The certainty of evidence was synthesized using a modi ed GRADE approach, downgrading for risk of bias, inconsistency, imprecision, and indirectness. Results: We included 33 studies. Hypothesis testing for construct validity (n = 27) was rated Suf cient (+) with high certainty, showing expected correlations with satisfaction (rs = 0.38 to 0.49) and task performance (r = 0.91). Internal consistency (n = 8) was rated Suf cient (+) with reliability coef cients (α or ω) ranging from 0.63 to 0.91; however, evidence was not graded due to structural inconsistencies. Structural validity (n = 3) yielded an indeterminate result due to con icting Con rmatory Factor Analysis indices (CFI from 0.816 to 0.960) and a lack of assessment for local independence and monotonicity. Notably, content validity assessment was entirely absent across all included studies. Discussion: While the SUS demonstrates robust construct validity, uncertainty regarding its structural validity in rehabilitation contexts suggests that the total sum score cannot be fully trusted as a unidimensional measure. Fur- thermore, the lack of evidence for content validity is a major gap, as the scale’s relevance for patients with cogni- tive or communication impairments remains unveri ed. Clinicians should interpret SUS results with caution, triangulating them with qualitative data to ensure speci c clinical goals of effectiveness and ef ciency are met. Future research must prioritize content validation and rigorous structural analysis using modern psychometric techniques. |
| Informations complémentaires : | Lien gratuit vers l'article jusqu'au 7 novembre 2026 : https://authors.elsevier.com/c/1nob06govhqNvs |
| Adresse de la version officielle : | https://www-sciencedirect-com.tlqprox.teluq.ca/sci... |
| Déposant: | Latulippe, Karine |
| Responsable : | Karine Latulippe |
| Dépôt : | 23 sept. 2026 17:04 |
| Dernière modification : | 23 sept. 2026 17:04 |
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