Table 3.
Situation | Decision rules | Decision point | Tailoring variables | Intervention options (IO)* according to BCT Taxonomy (see Table 2) |
---|---|---|---|---|
Addictive use report | IF use = TRUE since the previous assessment AND participant consents THEN see IO column. |
Daily EMA prompt |
|
1.2/1.3/ 2.3 + 12.3 /3.3/ 4.3 + 1.4/ 9.2/11.3 + 11.2 /12.4 /15.1 |
Craving report | IF level of craving is ≥4 (out of 7) OR IF level of craving is > last week’s mean level of craving AND participant consents THEN see IO column |
Daily EMA prompt |
|
1.2/2.3 + 12.3/2.3 + 1.2/3.3/4.1/9.2/11.3 + 11.2 /12.4 |
Cues report | IF exposition to a cue = TRUE AND participant consents THEN see IO column |
Daily EMA prompt |
|
1.2/2.3 + 1.2/3.3 /11.3 + 11.2/12.4 |
At-risk location detected (GPS) |
IF distance < fixed distance (10–90 meters) around one of the at-risk location points AND IF participant consents THEN see IO column. |
Anytime, when detected |
|
1.2/2.3 + 1.2/3.3 /11.3 + 11.2 /12.4 |
On-demand help request | IF click on the help button AND report: risk of use, use, craving, exposition to a cue THEN see IO column. |
Anytime, on participant’s demand |
|
1.2/1.3/2.3 + 1.2/2.3 + 12.3/3.3/4.1/4.3 + 1.4 9.2/11.3 + 11.2/12.4/15.1 |
*When several options are possible, the intervention is drawn at random, using a draw without discount rule, to maximize alternation of intervention options, and avoid fatigue effects.