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Table 5 Criterion validity. Significant correlations (Spearmans' rho) between task-oriented and overall questions about frequency of EMR use, work performance and user satisfaction. In the test-retest study, data from its first part was used for this analysis (61 physicians from three hospitals). *Tasks related to information retrieval.

From: Task-oriented evaluation of electronic medical records systems: development and validation of a questionnaire for physicians

Criterion validation for task-oriented questions
  In the... ...the task-oriented questions about... ...correlates to... ...in number of questions: Median correlation coefficient (range)
Frequency of EMR use: individual tasks vs. general information retrieval
1 test-retest study frequency of EMR use (B1-1 to B1-24) question B2-2: ``All considered, how often do you use the EMR as an information source in the daily clinical work? (never-always)'' 12 of 24 (50%) and 9 of 12* (75%) 0.516 (0.308 – 0.675)
Task performance vs. overall work performance
2 local study task performance (F1-F19) question G1a ``The performance of our department's work has become... (significantly more difficult - significantly easier)'' 17 of 19 (89%) 0.513 (0.286 – 0.684)
3 test-retest study task performance (C1-C24) question E3a: ``The performance of our department's work has become... (significantly more difficult - significantly easier)'' 20 of 24 (83%) 0.427 (0.329 – 0,662)
4 test-retest study task performance (C1-C24) question E3b: ``The performance of my own tasks has become... (significantly more difficult - significantly easier)'' 21 of 24 (88%) 0.435 (0.291 – 0.689)
Task performance vs. user satisfaction
5 local study task performance (F1-F19) the End user Computer Satisfaction measure 13 of 19 (68%) 0.483 (0.273 – 0.592)
6 test-retest study task performance (C1-C24) the End user Computer Satisfaction measure 15 of 24 (63%) 0.458 (0.328–0.682)
7 local study task performance (F1-F19) The Short Global User Satisfaction measure 16 of 19 (84%) 0.512 (0.332 – 0.686)
8 test-retest study task performance (C1-C24) The Short Global User Satisfaction measure 20 of 24 (83%) 0.445 (0.348 – 0.711)