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Content validity testing of the ESAT©: A decision aid tool for performing endotracheal suction in children

Kylie Davies1, Max K Bulsara2, Anne-Sylvie Ramelet3

  • 1Paediatric Intensive Care Unit, Princess Margaret Hospital for Children, Perth, Australia; University of Notre Dame Australia, Australia.

Australian Critical Care : Official Journal of the Confederation of Australian Critical Care Nurses
|March 4, 2017
PubMed

Insights

The Endotracheal Suction Assessment Tool (ESAT) demonstrates strong content validity for guiding paediatric intensive care nurses in performing endotracheal tube suction. Further testing is needed to confirm its clinical utility.

Area of Science:

  • Pediatric Critical Care Nursing
  • Clinical Assessment Tools
  • Psychometric Validation

Background:

  • Endotracheal tube suction in children can impact clinical stability.
  • Clinical indicators for suctioning have been previously identified.
  • These indicators informed the development of the Endotracheal Suction Assessment Tool (ESAT).

Purpose of the Study:

  • To evaluate if the ESAT items collectively form an operational definition for endotracheal tube suction decisions.
  • To assess the content validity of the ESAT for paediatric intensive care nurses.

Main Methods:

  • Adopted Lynn's process for calculating content validity and scale content validity index (S-CVI).
  • Engaged expert reviewers from international paediatric intensive care units.
  • Utilized a minimum a-priori agreement of 0.78 for content validity index (CVI) and 0.8 for S-CVI.

Main Results:

  • All 15 items met the agreement criteria for internal consistency.
  • The CVI ranged from 0.8 to 1.0, and S-CVI ranged from 0.9 to 1.0.
  • Minor revisions improved the clarity of four items.

Conclusions:

  • The ESAT demonstrates established item and scale content validity indexes.
  • Further psychometric testing is required for construct validity and stability.
  • Clinical utility and application by novice nurses need further evaluation.
Abstract

Keywords:
Content validityEndotracheal suctionPaediatric intensive careSuction tool

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