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Tag: 90
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Pages
The following pages have the tag 90 associated with them. The number of users that have also tagged the page ' 90 ' is in parenthesis.Calculating a Sigma Level from Task Success ( 178 )
Often the most reported measures of usability is task success. How does task success translate into a quality sigma value that can be compared to other reported sigma values?
How Do You Calculate a Z-Score/ Sigma Level? ( 83 )
The basics of z-scores are discussed plus an example of raw usability data converted into z-scores including three of Nielsen's five usability attributes.
Questions
No questions have the tag 90 associated with them.