Lack of technology/equipment
Challenges in scheduling exams
Insufficient staff time to manage program
X
2%
−10%
−8%
−6%
−4%
−2%
2%
4%
6%
8%
10%
8%
Low certification rate − High certification rate
3%
8%
2%
Suburb − Rural
−7%
−2%
0%
City − Rural
−2%
5%
−1%
City − Suburb
4%
7%
−8%
Low-poverty − High-poverty
4%
2%
