Chapter 12 Shit Flashcards
What are the primary reasons for testing?
-Assessment of athletic talent
+Allows the coach to determine whether an individual has the physical potential to play a sport at the competitive level of the team
-Identification of physical abilities in need of improvement
+Allows the coach to determine which physical abilities should be targeted in the s+c program
What are the 8 kinds of validity?
-Construct
-Face
-Content
-Criterion-referenced
+Concurrent validity
+Convergent Validity
+Predictive validity
-Discriminant validity
What is construct validity?
-The degree to which a test measures what it is supposed to measure
-To be valid - tests must:
+Measure abilities important in the sport
+Produce repeatable results
+Measure the performance of one athlete at a time
+Appear meaningful
+Be of suitable difficulty
+Be able to differentiate between different levels of ability
+Permit accurate scoring
+Include a sufficient number of trials
+Withstand the test of statistical evaluation
-Given the choice between two valid tests - pick the simplest and most economical in terms of administration
What is face validity?
-The appearance to the athlete and other observers that the test measures what it is purported to measure - “the appearance of test validity to nonexperts”
-Athletes are more likely to respond positively and be motivated to perform on tests with adequate face validity
What is content validity?
-The assessment by experts that the testing covers all relevant subtropics or component abilities in appropriate proportions needed for the sport
What is Criterion-referenced validity?
-The extent to which test scores are associated with some other measure of the same ability - includes three subtypes
+Concurrent
+Convergent
+Predictive
What is concurrent validity?
-The extent to which test scores are associated with those of other accepted tests that measure the same ability
What is convergent validity?
-A high-positive correlation between results of the test being assessed and those of the recognized measure of the construct (“the gold standard”)
What is predictive validity?
-The extent to which the test score corresponds to future performance or behavior in the relevant sport
What is discriminant validity?
-The ability of a test to distinguish between two different constructs
-Evidenced by low correlations between results from one test construct vs another - avoids redundancy in the different tests performed
What is reliability in a test?
-A measure of the degree of consistency or repeatability of a test
-An athlete whose ability is unchanged should receive the same score on a reliable test
-Tests must be reliable to be valid
What is the main way people test reliability?
-Test-retest reliability
+Difference between two scores on the same athlete determine test-retest reliability
+On a reliable test, score differences indicate a measurement error
What is TE?
-Typical error of measurement (TE)
+Includes equipment error and biological variation of athletes
What can score differences arise from?
-Intrasubject variability
+Lack of consistent performance from a testing athlete
-Lack of interrater reliability or agreement
+The degree to which different raters agree in their test results over time or on repeated occasions - consistency between raters
+Tests need a clearly defined scoring system
+The same scorer should test the same athletes at the beginning and end of a training period
+Poor interrater reliability leads to athletes having artificially inflated scores from lenient testers
-Intrarater variability
+Lack of consistent scores by a given tester
+I.e. coach eager to see improvement may be more lenient on post-testing than pre-testing
+Other causes:
++Inadequate training
++Inattentiveness
++Lack of concentration
++Failure to follow calibration procedures
+Failure of the test itself
++Can occur for various reasons
++I.e. tests requiring techniques that the athletes has not developed consistency
++Technique-dependent tests tend to produce more variability in scoring
What does it mean to test based on metabolic energy system specificity?
-A valid test must emulate the energy requirements of the sport for which the ability is being assessed - i.e. phosphagen, glycolytic, oxidative
-Strength and conditioning professional must be familiar with the needs of the sport
-I.e. basketball running mostly anaerobic with specific distances and direction changes
-Tests should simulate the physical movements and energy demands of a real game