TIDiers #9: “Tailoring: If the intervention was planned to be personalised, titrated, or adapted, then describe what, why, when, and how.”
TIDiers #10: “Modifications: If the intervention was modified during the course of the study, describe the changes (what, why, when, and how).”
TIDiers #11: “How Well: Planned: If the intervention adherence or fidelity was assessed, describe how and by whom, and if any strategies were used to maintain or improve fidelity, describe them.”
TIDiers #12: “How Well: Actual: If intervention adherence or fidelity was assessed, describe the extent to which the intervention was delivered as planned.”
Tailoring (TIDiers #9) describes how the intervention was individually planned and tailored to the participant’s specific needs. Modifications (TIDiers #10) capture if any changes were made to the intervention during the study. The How Well (Planned) (TIDiers #11) item describes if intervention adherence was assessed and maintained and how that occurred. Lastly, the How Well (Actual) (TIDiers #12) item is concerned with whether intervention adherence (or fidelity) was assessed and the degree to which the intervention was delivered as planned. Studies included in this chapter either did not report or did not provide sufficient information regarding TIDiers items #9-#12 described above; therefore, the program characteristics related to these items could not be summarized here.