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. 2019 Mar 20;8(3):e12265. doi: 10.2196/12265

Table 1.

SPIRIT Figure: Schedule of enrollment, intervention, and assessments.

Time point Study period
Recruitment Enrollment and allocation Postallocation daily food surveys Close out
−t1 0 t1 t2 t3 t4 t5 t6
Enrollment

Eligibility screen X —a — — — — — —

Informed consent — X — — — — — —

Allocation — X — — — — — —
Interventions

Positive affect and episodic future thinking — X — — — — — X

Positive affect — X — — — — — X

Episodic future thinking — X — — — — — X

Neutral affect and episodic recent thinking — X — — — — — X
Assessments

Baseline: TDb — X — — — — — —

Baseline: Food demand — X — — — — — —

Outcome: TD — X — — — — — X

Outcome: Food demand — X — — — — — X

Outcome: Food choice — X — — — — — X

Outcome: Daily food surveys —
X X X X X —

Assessments before allocationc — X — — — — — —

Assessments after allocationd — X — — — — — —

Assessments at close oute —
— — — — — X

Repeated assessments (before allocation and at close out)f — X — — — — — X

a—: not applicable.

bTD: temporal discounting.

cAssessments before allocation: food frequency, reward-based eating, health-specific self-efficacy, weight related eating, health locus of control, perceived stress reactivity.

dAssessments after allocation: emotion regulation, trait mindfulness, behavioral motivations, impulsiveness, mental health history, physical health history, demographics.

eAssessments at closeout: global self-reported health, self-reported weight status, social desirability, coping responses, tobacco and alcohol use, sleep quality, loneliness, psychological flexibility.

fRepeated assessments (before allocation and at closeout): stages of change in weight management; Covariate measures included in analyses: perceived stress, positive and negative affect, and depressive symptoms.”