User Satisfaction Evaluation of the EHR4CR Query Builder: A Multisite Patient Count Cohort System

Table 3

Perceived task difficulty and satisfaction.

Item	Task 1		Task 2		Task 3		Wilcoxon-Test, value
	Mean	SD	Mean	SD	Mean	SD	T1-T2	T1-T3	T2-T3
Task difficulty	3.94	0.929	3.75	1.000	2.63	1.088	0.582	0.006	0.005
Satisfaction with the ease of completing the task	3.81	0.911	4.06	0.574	2.75	0.856	0.271	0.007	0.001
Satisfaction with the amount of time it took to complete the task	3.88	0.885	3.75	0.856	2.94	0.680	0.755	0.017	0.005
Satisfaction with the functionality provided	3.69	0.873	3.81	0.655	2.88	0.957	0.557	0.010	0.002

Mean ratings (5-point rating scale), standard deviations, and values of Wilcoxon-Test, significant at the level; participants.