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Table 1 SPIRIT schedule of enrollment, interventions, and assessments [36]

From: Study protocol of a multi-center RCT testing a social-cognitive intervention to promote volunteering in older adults against an active control

  Enrolment Allocation Post-allocation
TIMEPOINT -1 Baseline (T0) Intervention period 6 weeks post-test (T1) 3 months follow-up (T2) 6 months follow-up (T3)
    Week 1 Week 2 Week 3 Week 4    
 Eligibility screen X         
 Informed consent X         
 Allocation   X        
Volunteering Intervention    X X X X    
Active Control Intervention    X X X X    
Socio-demographic variables   X        
Covariates   X        
Primary Outcome   X      X X X
Secondary Outcomes (including subjective health)   X      X X X
Mediator variables   X      X X X
Moderators variables   X      X X X