SCS Assessment & Performance Testing 5 — Questions and Answers
Question 1: The Hawthorne effect is a potential confound in performance testing because it suggests that athletes may:
- Perform differently when they know they are being observed (Correct answer)
- Improve due to placebo effect of supplementation
- Overestimate effort on subjective RPE scales
- Fatigue faster when testing in a group setting
Correct answer: Perform differently when they know they are being observed
The Hawthorne effect describes the tendency for individuals to alter their behavior when aware of being observed or tested.
Question 2: Which of the following represents a valid criterion-referenced standard for female collegiate soccer athletes on the 40-yard dash?
- A pre-established time that athletes must meet to qualify for a sport-specific performance level (Correct answer)
- The average time recorded across all athletes in the testing session
- The time achieved by the fastest athlete in the group
- A percentile rank derived from national normative databases
Correct answer: A pre-established time that athletes must meet to qualify for a sport-specific performance level
Criterion-referenced standards set a fixed performance benchmark tied to sport-specific demands, independent of how other athletes perform.
Question 3: What is the purpose of conducting a familiarization trial before collecting baseline performance data?
- To reduce the learning effect and obtain a true representation of maximal performance (Correct answer)
- To warm up muscles and prevent injury during testing
- To establish rapport between the athlete and coach
- To determine which tests are appropriate for the athlete's fitness level
Correct answer: To reduce the learning effect and obtain a true representation of maximal performance
Familiarization sessions eliminate the skill-learning component of novel tests so that subsequent measurements reflect true physical capacity rather than task learning.
Question 4: An athlete's grip strength is 52 kg in the dominant hand and 46 kg in the non-dominant hand. What is the bilateral strength asymmetry index?
- Approximately 11.5% (Correct answer)
- Approximately 6 kg
- Approximately 88.5%
- Approximately 5.8%
Correct answer: Approximately 11.5%
Asymmetry index = ((dominant − non-dominant) / dominant) × 100 = (6/52) × 100 ≈ 11.5%, indicating a moderate bilateral difference.
Question 5: Which environmental condition has the greatest acute negative effect on muscular strength and power test performance?
- Cold ambient temperature below 15°C (59°F) (Correct answer)
- Moderate altitude of 1,500 m (4,921 ft)
- Relative humidity above 70%
- Bright artificial lighting
Correct answer: Cold ambient temperature below 15°C (59°F)
Cold temperatures reduce muscle and core temperature, impairing enzyme activity, nerve conduction velocity, and actin-myosin cross-bridge cycling, thereby decreasing strength and power.
Question 6: A coach uses the Omegawave system before training sessions. What physiological system does this device primarily assess?
- Central nervous system and cardiac autonomic regulation (Correct answer)
- Muscle glycogen stores and hydration status
- Testosterone-to-cortisol ratio
- Blood oxygen saturation and hemoglobin levels
Correct answer: Central nervous system and cardiac autonomic regulation
Omegawave measures DC brain potential and heart rate variability to provide indices of CNS readiness and autonomic nervous system balance.
Question 7: When performing a VO2max test using the Bruce protocol, the metabolic equivalent (MET) at stage 4 is approximately 12.1. If 1 MET = 3.5 mL/kg/min, what is the estimated VO2 at that stage?
- 42.35 mL/kg/min (Correct answer)
- 35.0 mL/kg/min
- 48.6 mL/kg/min
- 12.1 mL/kg/min
Correct answer: 42.35 mL/kg/min
VO2 = METs × 3.5 mL/kg/min = 12.1 × 3.5 = 42.35 mL/kg/min.
SCS Assessment & Performance Testing 5
The Hawthorne effect is a potential confound in performance testing because it suggests that athletes may: