Longitudinal Usability Meta Study

Summer project – A meta-analysis of different longitudinal studies over the years was undertaken, to aggregate and conduct in-depth exploration of methods and metrics that have proven effective for collecting user data over time. Research Questions

Methodology Literature survey of existing publications employing longitudinal methodology to evaluate usability of a system was undertaken. More than 120 papers were surveyed for this research.

Results A breakdown of all the methodologies employed was documented and analysed for trends in methodology usage. It was found that diary studies was one of the most popular methodology for longitudinal studies.