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Within Subjects or Repeated Evaluations

Every person evaluates all solutions

Description

A within subject study design requires that every participant evaluates all solutions that are part of the usability study.

As every usability study participant will see all prototypes the order of the prototypes need to be mixed for every participant within the study design so that learning effects can be minimised.

Between Subject or Between Group

A between subject design means that every participant gets to see only one solution during the usability study.

#betweensubject