Exam (elaborations)
KNES 375 questions with correct answers.
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- KNES
- Institution
- Liberty University
KNES 375 questions with correct answers.
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KNES 375 questions with correct answersWhat are the two most important characteristics of a test? What are
some examples of each? Correct Answer--validity: closeness of
agreement between what the test measures and what the test is intended
to measure (i.e. if the J&P 7-site is a valid measure of Body Density, is
the hand grip-dynanometer strength a valid test for overall strength?)
-reliability: the dependability of scores, and the relative freedom from
error (i.e. the wall volley tests as an indicator for setting skill)
What is the gold standard for evaluating aerobic power? How do we
prove that the Leger-Boucher shuttle run test is a valid measure of
VO2max? Correct Answer--VO2max test (locomotion test on treadmill,
ventilation measured using gas analysis, maximal graded exercise
treadmill test)
-we can never PROVE, but if the correlation between the Leger and a
treadmill GE test (criterion measure) is close to r=1 then we know there
is high validity (measures the VO2max similarly to the gold standard)
If we are comparing VO2max tests using a cycle ergometer submax test
and a Leger test vs a maximal graded exercise treadmill test, what are
we testing? The sit and reach test has a reliability coefficient of r=0.99,
and a validity coefficient of r=0.12 when compared to lower back
flexibility in women, what does this mean? Correct Answer--validity
-the test has high test/re-test reliability, but isn't an accurate indicator of
lower back flexibility in women
,What is the main factor that affects the reliability of a test? What are
some examples? Correct Answer--measurement error (any measurement
on a continuous scale contains an inherent component of error)
1. lack of objectivity (i.e. a subjective measurement like diving judging)
2. lack of consistent score/ performance of an individual (i.e. low
reliability test, SFK with amateur measurer)
3. failure of instrument to measure consistently (i.e. SKF calipers
4. failure of a test to follow standardized test protocols (i.e. not
following specific skinfold procedures)
What is discrimination? What is specificity? Correct Answer--ability to
determine if there is a detectable difference among two or more persons
or tests (i.e. the differentiation between different levels, the effect size)
-when choosing a test, the test must be specific to the physical attribute
being evaluated (i.e. aerobic power test for swimmers vs rowers vs
hockey players, doesn't make sense to test Vo2max on cycle ergometer
for a runner, you lose correlational strength and predictive ability)
What are norms in terms of test characteristics? Correct Answer--useful
to have when interpreting and evaluating test results
(i.e. comparing results to normative data)
-norms represent achievement level of a specific group to which
measured scores can be compared
-want to select tests with valid norms available, that are population
specific and up to date
,What is economy in testing? Correct Answer--ease of
preparation/administration
-time and cost (important when doing mass testing)
-minimal equipment and personnel
-requires minimal practice (related to reliability and complexity
What is important when testing a client. What are some things that
changes in VO2max or body comp could be attributed to? Correct
Answer--understanding the needs of the client and relaying the test
results back to them in a way that they will understand (i.e. instead of
saying what their VO2max is, telling them what it means, how they can
work harder aerobically, etc)
-result of fitness program, biological variation (hydration, menstruation),
measurement error, etc
What are possible participant concerns in testing? Correct Answer--
appropriateness of test to participants
-type of population (must be age and gender specific)
-safety (some tests more hazardous than other)
-confidentiality and privacy (i.e. with SKF tests)
-motivation (important that there is equal motivation to all subjects,
important in maximal tests)
Why is a direct VO2max test a proxy for aerobic fitness? Correct
Answer--we are not measuring gas composition AT THE MUSCLE, we
can only measure from the mouth and then relay it back to what is
happening at the muscle
, -based on a number of different assumptions (if any aren't completely
true, can question validity of test)
Why might a four minute running test be a better analogous measure of
VO2max than the Leger test? Correct Answer--the Leger test involves a
lot of pivoting and direction change which increases individual variation
in agility, thus taking away from the accuracy of it measuring VO2max
What are the various components of pre-test procedures? What must you
do as the administer? Correct Answer--Test familiarity (you will be
better the more you have practiced)
-Pre-test instructions (What you need to know and do before you start)
-Medical /health status questionnaire (CYA- cover your assets)
-Informed consent (make sure people understand what is expected form
them, and what they can expect)
-you must develop procedure, estimate time, book equipment/facility,
develop scoring requirements and data sheets, consider safety factors
What does test familiarity mean as a test administer? Correct Answer-It
is your responsibility as the test technician or administer to fully
understand the testing procedures and protocols
-Read and reread protocols/procedures
-Perform the test(s) on yourself/ colleague
-Ensure test protocol is safe and runs efficiently
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