Dr. Evil develops a new video designed to increase levels of statistics anxiety among undergraduate students. He shows his video to a group of 20 students. He shows a control video ("Famous Airline Crashes") to a different group of 20 students. After watching the video, Dr. Evil has each participant fill out a version of the Statistics Anxiety Rating Scale. He expects the group who views the new video to have higher statistics anxiety than the control group.Dr. Evil's prediction that the new video will increase statistics anxiety is called a _______.

Group of answer choices

all of the options

dependent variable

hypothesis

independent variable