Reduced version of the MBGR protocol: validity based on content and the response processes

Area of Science:

• Speech-language pathology
• Clinical assessment tools
• Psychometrics

Background:

• The original MBGR Protocol is extensive, posing challenges for efficient clinical application.
• There is a clinical need for a more streamlined assessment tool.
• Validating a reduced version is crucial for practical use.

Purpose of the Study:

• To present a short version of the MBGR Protocol.
• To provide content-based validity evidence for the reduced protocol.
• To validate the response process of the shortened MBGR Protocol.

Main Methods:

• A preliminary reduced MBGR Protocol was developed and refined using the Delphi methodology with expert feedback.
• Content validation involved two rounds with a Likert scale, calculating the Content Validity Index (CVI).
• Response process validation included training speech-language pathologists (SLPs), applying the protocol to patients, and analyzing SLP feedback.

Main Results:

• The reduced protocol was refined from 36 items to a final version after expert review and item exclusion, achieving a global CVI of 87%.
• Speech-language pathologists reported adequate understanding and applicability of the short version, deeming it more feasible than the original.
• Statistical analysis confirmed the validity and applicability of the reduced MBGR Protocol.

Conclusions:

• The short MBGR Protocol is validated for content and response process.
• The reduced version offers a shorter application time, enhancing clinical utility.
• This validated short version is more suitable for practical, efficient patient assessment.