Examlex
Discuss the general effects of stimulants. Illustrate with at least two specific examples of drugs in this category and their effects.
Nonzero Differences
Instances where there is a measurable or observable difference between two entities or measurements, not equal to zero.
Wilcoxon Signed-Rank Test
Employing no assumptions about data parameters, this statistical test is used for examining whether the population mean ranks differ across two related samples, matched samples, or repeated tests on the same individual sample.
Paired Experiment
A study design where participants are matched in pairs and each pair is treated differently to investigate the effects of the treatment.
Test Statistic
A value calculated from sample data during a hypothesis test that is used to determine whether the null hypothesis can be rejected.
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