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Counts of true/false positives and negatives, and estimates of sensitivity and specificity.
| Measures/outcomes | App pilot | Tag pilot | |||
| Measures, n |
|
|
|||
|
|
True positive | 35 | 46 | ||
|
|
True negative | 123 | 120 | ||
|
|
False positive | 18 | 6 | ||
|
|
False negative | 26 | 3 | ||
| Outcomes, % |
|
|
|||
|
|
Sensitivity | 57% | 94% (93%a) | ||
|
|
Specificity | 87% | 95% (100%a) | ||
aAdjusted values after removing erroneous contact records from tags left on participants’ desks when they were not on campus.
