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Table 2 Post-study system usability questionnaire (PSSUQ) results

From: The impact of a diagnostic decision support system on the consultation: perceptions of GPs and patients

PSSUQ question Mean (SD)
Q1 Overall, I am satisfied with how easy it is to use this system. 4.85 (1.42)
Q2 It was simple to use this system. 4.88 (1.63)
Q3 I could effectively complete the tasks and scenarios using this system. 4.47 (1.62)
Q4 I was able to complete the tasks and scenarios quickly using this system. 3.82 (1.31)
Q5 I was able to efficiently complete the tasks and scenarios using this system. 4.41 (1.42)
Q6 I felt comfortable using this system. 4.53 (1.58)
Q7 It was easy to learn to use this system. 5.47 (1.38)
Q8 I believe I could become productive quickly using this system. 4.27 (1.68)
Q9 The system gave error messages that clearly told me how to fix problems. 3.26 (1.73)
Q10 Whenever I made a mistake using the system, I could recover easily and quickly. 4.39 (1.67)
Q11 The information (such as on-line help, on-screenmessages and other documentation) provided with this system was clear. 4.95 (1.59)
Q12 It was easy to find the information I needed. 4.69 (1.55)
Q13 The information provided for the system was easy to understand. 5.22 (1.34)
Q14 The information was effective in helping me complete the tasks and scenarios. 4.53 (1.34)
Q15 The organization of information on the system screens was clear. 4.88 (1.62)
Q16 The interface of this system was pleasant. 5.21 (1.39)
Q17 I liked using the interface of this system. 4.88 (1.49)
Q18 This system has all the functions and capabilities I expect it to have. 4.09 (1.59)
Q19 Overall, I am satisfied with this system. 4.18 (1.55)