Developing a method to assess fidelity to a complex vocational rehabilitation intervention in the FRESH trial: a feasibility study

Table 2 Fidelity of FRESH intervention and identified moderating factors

Adherence			OTs				Moderating factors	Fidelity assessment
Adherence			OT A	OTB	OTC	OT D	Moderating factors	Fidelity assessment
Coverage			✓	✓	✓	✓	Participant responsiveness, intervention complexity	Fidelity met in all cases
Content			✓	✓	✓	✓	Participant responsiveness, facilitation strategies, intervention complexity and context	Fidelity met in all cases
Duration			✓*¹	✓*¹	✓*¹	✓*¹	Participant responsiveness, intervention complexity and context	Fidelity met in most cases
Frequency	1	≤ 10 days	✓*³	✓*¹	✓*³	**	Participant responsiveness, intervention complexity	Fidelity met in most cases
	2	1–8 weeks	✓	✓	✓	✓	Facilitation strategies and context	Fidelity met in all cases
	3	≤ 8 weeks	✓	✓	✓	✓	Intervention complexity and context	Fidelity met in all cases
	4	4-8 weeks	✓	✓	✓	✓	Intervention complexity and context	Fidelity met in all cases

✓—fidelity met; ✓*—fidelity met except for n = x cases; **—missing data; timepoint 1 within 10 days of referral; timepoint 2 OT contact every 1–2 weeks, case manager 6–8 weeks; timepoint 3 on graded RTW, weekly for 4 weeks, then fortnightly for 8 weeks, then checks ≤ 8 weeks; timepoint 4 on full RTW contact is 4–8 weeks; RTW—return to work

ISSN: 2055-5784