A computing device obtains settings for a design of an experiment. The settings include a first sample size that indicates an amount of members for a first group observed as part of the experiment, a design quality metric that assesses, based on the first sample size, a quality of the design for the experiment prior to conducting the experiment, and a parameter pertaining to the first group. The computing device also displays first and second graphs of the design quality metric on a graphical user interface. The first graph is displayed as a function of the first sample size and the second graph is displayed as a function of the parameter pertaining to the first group. The computing device also receives a first user indication to change one or more of the settings, and then updates both the first and second graphs to account for the first user indication.