Table IV.

Descriptive statistics for provider-reported measures of fidelity of implementation

Fidelity measure and variables	Mean or %	95% CI
Adherence, % implemented prescribed content and interactive delivery strategies	27.7	22.6–32.8
Content, %	70.8	65.8–75.9
Frequency of information contenta	3.1	3.1–3.2
Frequency of refusal skills contenta	2.8	2.7–2.9
Frequency of personal and social competency skills contenta	3.3	3.2–3.3
Frequency of positive affect and beliefs contenta	3.1	3.0–3.1
Interactive delivery strategies, %	33.4	28.1–38.7
Frequency of interactive strategiesa	3.0	2.9–3.1
Frequency of non-interactive strategiesa	3.1	3.0–3.1
Exposure, % fully implemented curriculum	35.8	30.5–41.2
Taught all lessons, %	55.4	50.1–60.7
Taught lessons on recommended schedule, %	56.9	51.4–62.5
Quality of program delivery, % encouraged students and confident delivering	85.3	81.5–89.2
Provider encouragement of studentsb	4. 5	4.3–4.5
Provider confidenceb	4.0	3.9–4.1
Participant responsiveness, %	80.3	75.7–85.0
Program differentiation, % used only the focal curriculum	15.3	11.5–19.1
Fidelity, % demonstrating adherence, exposure, quality of program delivery, participant responsiveness and program differentiation criteria	1.3	0.0–2.7

Sample sizes range from N = 307 to 342 because of missing data on items. Sample includes school providers who taught an evidence-based substance use prevention curriculum ‘the most’ in the 2004–05 school year. All estimates use weighted data.

^aRange = 1–4.

^bRange = 1–5.