Experimental research in HCI

In Experiments, researchers set up comparable situations in which they carefully manipulate variables and collect people’s behavior in each condition. Experiments are very effective in determining causation in controlled situations and complement techniques that investigate ongoing behavior in more natural settings. For example, experiments are excellent for determining whetherincreased audio quality reduces blood pressure of participants in a video conference, and can add important insights to the larger question of when people choose video conferences over audio-only ones.