Validity and reliability of a sensor-enabled intubation trainer: A focus on patient-centered data

Nabil Issa, Lawrence Salud, Calvin Kwan, Kyra Woods, Carla Pugh*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Background: Prior work using simulation for assessing intubation skills has largely focused on the use of observer-generated performance measures in the form of checklists and global ratings scales. Purpose: The purpose of our work was to investigate whether patient-centered simulation data could be used to quantify learner's performance during direct laryngoscopy. Methods: We designed a pretest/posttest prospective intervention study of residents' (n = 25) intubation skills. Results: When assessing validity, all of the patient-centered simulation variables showed significant correlations with the previously validated observer-generated performance measures (r = 0.331-0.463, P ≤ 0.001). When assessing reliability, there were significant correlations between all of the sensor variables, confirming moderate to high inter-item reliability (r = 0.259-0.794, P ≤ 0.05). The observer-generated performance measures showed significant improvement in use of the Macintosh blade (T1 = 2.10/5.00, T2 = 3.64/5.00, P = 0.001). However, this was not the case for the Miller blade (T1 = 1.30/5.00, T2 = 1.75/5.00, P = 0.119). Overall, the patient-centered simulation variables provided a high level of detail regarding performance improvement areas. Conclusion: This study presents a multilevel analysis of sensor-generated simulation data. As the sensors provide sound, formative data regarding patient contact, the outputs may be used for specific criterion measures and detailed performance feedback.

Original languageEnglish (US)
Pages (from-to)27-32
Number of pages6
JournalJournal of Surgical Research
Issue number1
StatePublished - Sep 2012


  • Force measurements
  • Intubation
  • Patient-centered data
  • Performance assessment
  • Sensors
  • Simulation
  • Validity

ASJC Scopus subject areas

  • Surgery


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