Practice Test Geeks(AEP) Associate Ergonomics Professional Practice Test
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Assessment and Evaluation Flashcards

7 cards from real AEP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Assessment and Evaluation flashcards as text

  1. Which study design is most appropriate for establishing a causal relationship between an ergonomic intervention and a reduction in injury rates?

    Answer: Randomized controlled trial

    A randomized controlled trial minimizes confounding by randomly assigning participants to intervention and control conditions, best establishing causality.

  2. Surface electromyography (sEMG) in ergonomics is typically normalized to which reference contraction?

    Answer: Maximum voluntary contraction (MVC)

    Normalizing sEMG to the maximum voluntary contraction (%MVC) allows meaningful comparison of muscle effort levels across individuals and sessions.

  3. The 'composite lifting index' (CLI) from the revised NIOSH equation is used when:

    Answer: Multiple different lifting tasks are performed during a shift

    The Composite Lifting Index aggregates the metabolic and biomechanical demands of multiple distinct lifting tasks performed by a worker in a single shift.

  4. In ergonomic evaluation, 'construct validity' of an assessment tool means:

    Answer: The tool measures the theoretical construct it is intended to measure

    Construct validity confirms that an assessment tool accurately captures the theoretical ergonomic risk construct it was designed to measure.

  5. During a musculoskeletal disorder (MSD) symptom survey, a 'prevalence rate' is calculated as:

    Answer: Number of workers with MSD symptoms divided by the total workforce at a point in time

    Prevalence rate measures the proportion of a population that has a condition at a specific point in time, typically expressed as a percentage.

  6. The 'wrist position' scoring in RULA (Rapid Upper Limb Assessment) assigns the highest risk score when the wrist is:

    Answer: Flexed or extended beyond 15°

    RULA assigns higher wrist scores for flexion or extension greater than 15°, with additional points added for ulnar or radial deviation.

  7. A researcher reports a kappa coefficient of 0.72 for an ergonomic observational tool. This value indicates:

    Answer: Substantial agreement between raters

    Cohen's kappa of 0.61–0.80 is generally interpreted as substantial agreement, indicating the tool performs consistently across raters.