Validity of a protocol for remote static posture assessment (ARPE)

Abstract

Introduction: Remote postural assessment, necessary during the pandemic, required strategies to replace its in-person counterpart. Objectives: Analyze the content validity of a protocol for Remote Static Posture Assessment (ARPE) that includes three items, Postural Checklist, Rater’s Manual and Ratee’s Manual. Method: Six experts in postural assessment were invited to validate the content of the three items of the ARPE protocol and 10 laypersons evaluated the Ratee’s Manual. The validity questionnaire encompassed the protocol in general and each individual item, containing an area for suggestions from experts and laypersons. The responses of these raters were used to calculate the Content Validity Indexes (CVI). Results: Two rounds of evaluations were carried out with the experts and one with the laypersons. In the first round with the experts, the CVI ranged from 98.6 to 83%. Three aspects (description of head positioning, description of scapula and waist positioning in the frontal plane) required adjustments. In the first round with the laypersons and second round with the experts, the CVI was 100%. Conclusion: The 100% agreement between experts and laypersons regarding the content of the ARPE protocol confirms its content validity.