Khan Academy

Ash Terry on Instagram: "@icet didn’t form Body Count as a crossover experiment. He formed it because metal was already part of who he was, and it was the right language for the anger, politics, and reality he wanted to confront. #RockLoreAsh #BodyCount #IceT #MetalHistory #MusicHistory"

A crossover trial is a type of experiment used to compare twodrugs. Subjects take one drug for a period of time, then switch toanother. The responses of the subjects are then compared usingmatched-pair methods. In an experiment to compare two painrelievers, seven subjects took one pain reliever for two weeks,then switched to the other. They rated their pain level from 1 to10, with larger numbers representing higher levels of pain. Can youconclude that the mean pain level is less with drug B? Use

The benefits of an active crossover

Science Experiment: Creating a Vacuum – A Reason For Homeschool