Table 3. Classification table output to assess the effectiveness of the survey collected data for predicting contacts.

The networks formed with the tag-collected data represents the gold standard and the network formed with information from the survey represents the test. The test sensitivity always correctly predicted the existence of contacts, however, the specificity was relatively low, indicating an inability to correctly predict an absence of contacts. Both the positive and negative predictive values were relatively high (≥ 0.5).

	Day
	1	2	3	4	5	6	7
Sensitivity	1.00	1.00	1.00	1.00	1.00	1.00	1.00
Specificity	0.33	0.24	0.24	0.24	0.22	0.23	0.20
Positive predictive value	0.75	0.61	0.61	0.61	0.56	0.58	0.50
Negative predictive value	1.00	1.00	1.00	1.00	1.00	1.00	1.00