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J Am Med Inform Assoc 6:428-434 doi:10.1136/jamia.1999.0060428
  • Original Investigation

Influence of Case and Physician Characteristics on Perceptions of Decision Support Systems

Table 6

Partial Correlations (r) Between Perceptions of Quick Medical Reference (QMR) and Physicians' Performance on Cases with Different Characteristics

Type of Case Correlations of Perception and Performance Scores
Accuracy Relevance Comprehensiveness
Usefulness Confidence Usefulness Confidence Usefulness Confidence
Difficult −0.09 −0.14 −0.28* 0.17 0.12 −0.23
Easy −0.10 0.12 −0.29* 0.20 0.15 −0.06
High information quality −0.07 −0.02 −0.21 0.09 0.25 −0.20
Low information quality −0.13 0.03 −0.26* 0.16 0.03 −0.04
Difficult, high quality −0.05 −0.11 −0.24 0.03 0.17 −0.24
Difficult, low quality 0.02 −0.09 −0.19 0.24 −0.03 0.09
Easy, high quality −0.02 0.03 −0.26* 0.29* 0.09 −0.13
Easy, low quality −0.20 0.16 −0.21 0.09 0.12 0.02
 Total −0.14 −0.04 −0.31* 0.13 0.15 −0.16

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