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A Canadian Forces instructor recorded the time in which each of 10 recruits completed an obstacle course both before and after basic training. To test whether any improvement occurred, the instructor would use a t distribution with nine degrees of freedom.
Severe Depression
A major depressive disorder characterized by a deep and persistent feeling of sadness or despair and/or a loss of interest in activities, accompanied by several physical and emotional problems.
Euphoric
A feeling of intense excitement and happiness.
Hyperactive
Describes a condition, often in the context of ADHD, where an individual displays an abnormally high level of activity or energy.
Lithium
A chemical element (Li) used in rechargeable batteries and as a mood-stabilizing drug in psychiatry.
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