Star Trek: Voyager: Scientific Method

"Scientific Method" is the 75th episode of Star Trek: Voyager, the seventh episode of the fourth season. The premise of the episode is that of a group of cloaked aliens performing scientific experiments on the Voyager crew, and the effect the experiments have on the various crew members. The episode explores this from a third party perspective, and views the events in a manner similar to the medical experiments humans perform on lab rats or other animals.