Post-Study System Usability Questionnaire (PSSUQ)

PSSUQ stand for ‘Post-Study System Usability Questionnaire’.

What is the PSSUQ?

The Post-Study System Usability Questionnaire (PSSUQ) is a research instrument that was developed for use in scenario-based usability evaluation at IBM.

PSSUQ consists of 19 items aimed to address the following five system usability characteristics: quick completion of work, ease of learning, high-quality documentation and online information, functional adequacy and rapid acquisition of usability experts and several different user groups that were identified by a panel of IBM Human-Computer Interaction (HCI) experts.

A follow-up study on the PSSUQ using five years of data produced similar psychometric properties between the original survey and the follow-up study survey. The environment that the original PSSUQ instrument used at IBM to assess the user satisfaction of the usability was enterprise-wide and networked office application suites. The follow-up study domain was speech recognition systems.

Post-Study System Usability Questionnaire Items

  1. Overall, I am satisfied with how easy it is to use this system
  2. It was simple to use this system
  3. I could effectively complete the tasks and scenarios using this system
  4. I was able to complete the tasks and scenarios quickly using this system
  5. I was able to efficiently complete the tasks and scenarios using this system
  6. I felt comfortable using this system
  7. It was easy to learn to use this system
  8. I believe I could become productive quickly using this system
  9. The system gave error messages that clearly told me how to fix problems
  10. Whenever I made a mistake using the system, I could recover easily and quickly
  11. The information (such as on-line help, on-screen messages, and other documentation) provided with this system was clear
  12. It was easy to find the information I needed
  13. The information provided for the system was easy to understand
  14. The information was effective in helping me complete the tasks and scenarios
  15. The organization of information on the system screens was clear
  16. The interface of this system was pleasant
  17. I liked using the interface of this system
  18. This system has all the functions and capabilities I expect it to have
  19. Overall, I am satisfied with this system
Source: Fruhling, A and Lee, S, 2005. Assessing the Reliability, Validity and Adaptability of PSSUQ. In Proceedings of the 9th Americas Conference on Information Systems, Omaha, Nebraska, USA, August 2005,