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Assessment of Advanced Life Support competence when combining different test methods--reliability and validity.

C Ringsted1, F Lippert, R Hesselfeldt

  • 1Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark. charlotte.ringsted@rh.regionh.dk

Resuscitation
|May 1, 2007
PubMed
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A combined European Resuscitation Council (ERC) assessment using one multiple-choice question (MCQ) and one Cardiac Arrest Simulation Test (CASTest) reliably measures Advanced Life Support (ALS) competence.

Area of Science:

  • Medical Education
  • Emergency Medicine
  • Cardiopulmonary Resuscitation

Background:

  • Robust assessment of Advanced Life Support (ALS) competence is crucial for certification and evaluating learning outcomes.
  • The European Resuscitation Council (ERC) offers multiple-choice questions (MCQs) and Cardiac Arrest Simulation Tests (CASTests) for ALS assessment.

Purpose of the Study:

  • To analyze the reliability and validity of individual ERC sub-tests.
  • To identify an optimal combination of MCQ and CASTest for a single, reliable measure of ALS competence.

Main Methods:

  • A randomized controlled study compared newly graduated doctors (N=17) with students who had passed the ALS course 9 months prior (N=16).
  • Reliability was assessed via inter-rater agreement and generalizability across scenarios.

Related Experiment Videos

  • Validity was evaluated by comparing test difficulty and discrimination between groups.

    • Main Results:

    • Inter-rater agreement on checklist scores was high (ICC 0.766–0.977), but pass/fail decisions varied.
    • One MCQ was significantly more difficult than the other; CASTests showed no significant differences.
    • A composite score using one MCQ and one CASTest demonstrated high reliability, test set equality, and discriminative ability.

    Conclusions:

    • ERC sub-tests for ALS competence demonstrate adequate reliability and validity.
    • A combined ALS score, equally weighting one MCQ and one CASTest, serves as a valid single measure of ALS competence.