ALL

Showing 49–54 of 54 results

• 

  Average Task Time Calculator

  $11.56 – $49.99 Select options
• 

  A Practical Guide to Measuring Usability

  $39.60 – $89.99 Select options
• 

  zScore Calculator

  $19.99 – $29.99 Select options
• 

  Confidence Interval Comparison Calculator

  $20.44 – $29.99 Select options
• 

  Usability Statistics Package Expanded

  $399.99 – $798.99 Select options
• 

  Usability Statistics Package

  $199.99 – $398.99 Select options