TABLE 3.

Factor Structure and Individual Items

Item	a (Discrimination)	SE	b (Location)	SE	Threshold	SE	Loading	SE
Factor 1: General Opioid Knowledge
1. Long-acting opioids are used to treat chronic, “round-the-clock” pain (T)	0.625	0.110	−0.748	0.080	0.634	0.060	0.530	0.067
2. Methadone is a long-acting opioid (T)	0.806	0.162	−1.291	0.131	1.005	0.068	0.628	0.077
3. Restlessness, muscle and bone pain, and insomnia are symptoms of opioid withdrawal (T)	1.398	0.313	−1.527	0.254	0.888	0.065	0.813	0.062
4. Heroin, OxyContin, and fentanyl are all examples of opioids (T)	0.427	0.100	−0.821	0.073	0.755	0.062	0.392	0.078
Factor 2: Opioid Overdose Risk Knowledge
5. Trouble breathing is not related to opioid overdose (F)	1.409	0.476	−0.392	0.125	0.227	0.057	0.815	0.092
6. Clammy and cool skin is not a sign of an opioid overdose (F)	0.712	0.140	−0.374	0.073	0.304	0.057	0.580	0.076
7. All opioid overdoses are fatal (deadly) (F)	0.252	0.082	−0.108	0.058	0.105	0.056	0.245	0.075
8. Using a short-acting and a long-acting opioid at the same time does not increase your chance for an opioid overdose (F)	0.623	0.121	−0.243	0.067	0.206	0.056	0.529	0.074
Factor 3: Opioid Overdose Response Knowledge
9. If you see a person overdosing on opioids, you can begin rescue breathing until health workers arrive (T)	0.636	0.117	−1.062	0.093	0.896	0.065	0.537	0.070
10. A sternal rub helps you evaluate whether someone is unconscious (T)	1.566	0.342	−2.115	0.350	1.138	0.071	0.843	0.053
11. Once you confirm the individual is breathing, you can place into the recovery position (T)	0.908	0.157	−1.392	0.138	1.030	0.068	0.672	0.064
12. Narcan (naloxone) will reverse the effect of an opioid overdose (T)	1.468	0.339	−2.221	0.365	1.250	0.075	0.826	0.061