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In order to determine whether the median distance for the X-Special golf ball exceeds the median distance for the best-selling golf ball, six golfers were selected and asked to hit each ball with their driver. The distance was recorded. The following data were observed. Based on these, the appropriate test is the Kruskal-Wallis one-way analysis of variance.
Test-Retest Reliability
The consistency of measurements or scores when the same test is administered to the same participants under the same conditions at different times.
True Scores
Theoretical values that accurately reflect the actual attribute or ability measured, devoid of any measurement error or bias.
Observed Scores
The actual scores or data collected from research participants during a study.
Reliability Coefficients
Statistics that measure the consistency or stability of scores from a test or measurement tool over time.
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