Development and validation of an instrument (CSII - Brazil) to assess users' conceptual and procedural knowledge of continuous subcutaneous infusion systems

Arch. endocrinol. metab. (Online); 65 (1), 2021
Publication year: 2021

ABSTRACT Objective:

To develop, adapt and validate an instrument named "CSII - Brazil" to assess users' conceptual and procedural knowledge of continuous subcutaneous insulin infusion systems.

Materials and methods:

Methodological and exploratory study developed in three stages: a) instrument development; b) content validation and cultural adaptation (evaluation by a committee of experts and pre-test with CSII users); c) psychometric validation through instrument application in a sample of 60 patients by means of the web tool e-Surv. Internal consistency and reproducibility analyses were performed within IBM SPSS Statistics 20 programming environment.

Results:

The 16 multiple-choice question instrument successfully attained a content validity index of 0.97, showing satisfactory internal consistency, with 0.61 Cronbach's alpha [95% CI 0.462-0.746] and an intraclass correlation coefficient of 0.869 [95% CI: 0.789-0.919] between the test and retest scores.

Conclusion:

The CSII - Brazil instrument is considered adequate and validated to assess continuous subcutaneous infusion system users' conceptual and procedural knowledge.

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