Planned missingness design for the weekly measurements, participants are randomly assigned to one of two measurement schemes
| Days from randomisation | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 0 | 7 | 14 | 21 | 28 | 35 | 42 | 49 | 56 | |
| Scheme 1 | X | O | O | O | X | O | O | O | X |
| Scheme 2 | X | O | X | O | O | O | X | O | O |
X=ICS only; O=PHQ-9, GAD-7, RAS and TLFB (last 7 days).
GAD-7, Generalised Anxiety Disorder Scale; ICS, Inventory of Consequences Scale for the Gambler and CSO; PHQ-9, Patient Health Questionnaire-9; RAS, Relationship Assessment Scale; TLFB, Timeline followback method.