Table 4

Agreement, sensitivity and specificity at the item level for the pedestrian safety behavior checklist.

Item

Correct

Sensitivitya

Specificityb

n

%


1. Student is part of a walking school bus

290

100

n/a

1.00

2. Crossed at corner or at a crosswalk

269

94

0.95

0.83

3. Crossed with adult or with the safety patrol

272

95

0.95

n/a

4. Stopped at the curb

245

85

0.72

0.89

5. Looked left-right-left

281

98

n/a

0.98

6. Kept looking while crossing

196

68

0.73

0.48

7. Walked (did not run) across the street

258

90

0.91

0.83

8. Waited or followed the traffic signal (if there is one)

290

100

n/a

1.00

Total

2101

91

0.85

0.83


a. Sensitivity could not be assessed for the behaviors (#1, #5, and #8) that none of the children performed.

b. Specificity could not be assessed for the behavior (#3) that all of the children performed.

Mendoza et al. BMC Public Health 2010 10:257   doi:10.1186/1471-2458-10-257

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