Baseline or summative testing captures metrics such as success rate, time on task, reported difficulty, and user satisfaction and comprehension. The purpose is to provide a baseline for how an application is performing from a user’s perspective. The testing also allows design changes to be quantified in their value from a usability standpoint.
Baseline tests can be used to compare your site with your competitors’ sites and pit user experience metrics against each another. These studies typically have a larger sample size and use inferential statistics to identify significant differences as well as effect sizes.
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