Examlex
The Internet has not yet proved to be a valuable tool in political fundraising.
Test-retest Reliability
The consistency of a test's results when the same individuals take the same test again after a period of time, measuring its stability over time.
Z score
A numerical metric that represents how a specific value's deviation relates to the average of a dataset, quantified by the number of standard deviations away from that average.
Normal Curve
A bell-shaped curve, also known as a Gaussian distribution, representing the spread of a variable in a way that most values cluster around the mean.
Standard Deviation
A statistic that measures the dispersion or variability of a dataset relative to its mean, indicating how spread out the data points are.
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