
βCoefficient

SE

df

t

P


(a) Model contact success rate

Intercept

2.2893

0.08323

15

27.51

<.0001

1 logger

−0.4716

0.1653

15

−2.85

0.0121

2 loggers

−0.3635

0.1277

15

−2.85

0.0123

3 loggers

–

–

–

–

–

(b) Model falsenegative rate

Intercept

0.6931

0.1768

15

3.92

0.0014

1 logger

1.1192

0.4203

15

2.66

0.0177

2 loggers

0.1386

0.2647

15

0.52

0.6082

3 loggers

–

–

–

–

–

(c) Model contacttriggered GPS location success rate

Intercept

4.0604

1.0086

15

4.03

0.0011

1 logger

11.2386

4.4765

15

0.03

0.9803

2 loggers

−2.9618

1.0881

15

−2.72

0.0157

3 loggers

–

–

–

–

–

 βCoefficients, standard errors and significance for each level of the number of loggers in the network, for the model of contact success rate (a), falsenegative rate (b) and contacttriggered GPS location success rate. Since the number of loggers was fitted as a categorical variable in the models, the βcoefficients refer to the difference with respect to the reference level (three loggers)