Table 2.

Self-injection social norms scale items and properties

Item	Exploratory Factor Analysis Loading	Mean (SD)
How many people in your community believe it is acceptable for women to administer the DMPA-SC self-injectable to themselves?	0.50	2.52 (1.00)
How many married women in your community administer the DMPA-SC self-injectable to themselves?	0.77	2.11 (.91)
How many unmarried women in your community administer DMPA-SC self-injectable to themselves?	0.77	2.12 (.93)
How many adolescent girls in your community administer the DMPA-SC self-injectable to themselves?	0.65	1.95 (.91)
Overall mean score	N/A	2.19 (CI: 2.16—2.22)

Response Options (5-point scale from 1–5). Higher scores = more positive self-injection social norms. Cronbach’s Alpha = 0.78