{
  "version": 86,
  "status": "aggregate_only_planning_not_empirical_precision",
  "input": "data/processed/sipp_household_food_v85.json",
  "known_before_plan": "All v85 cell counts and sample-flow counts were already public. This is not outcome-blind preregistration.",
  "target_half_width_pp": 5,
  "alpha": 0.05,
  "power": 0.8,
  "marginal_binary_prevalence_scenarios": [0.05, 0.1, 0.2, 0.5],
  "within_person_binary_correlation_scenarios": [0, 0.5, 0.8],
  "planning_weighting": ["pooled_cell_counts", "equal_origin_cohort"],
  "variance_assumptions": "Independent households and independent origin cohorts, equal unweighted within-cell variance, equal baseline/follow-up prevalence. Not a survey-design confidence interval or power estimate.",
  "change_outcome": "D = binary food insecurity at outcome minus baseline, in [-1,1]",
  "planning_contrast": "Within cohort: (mean D exposed low deposits - exposed high deposits) - (mean D control low deposits - control high deposits). Equal-cohort average is the cohort-standardized planning target; pooled calculation is only a composition-sensitive diagnostic.",
  "selection_target": "The 5868 event-roster-balanced, known-economic-or-no-ending households before outcome-roster/residence and food-quality exclusions, not all baseline or displaced households.",
  "selection_analysis": "Exposure-only retention and bounded-outcome ignorance width; no liquidity interaction selection bounds without missing-by-liquidity cells. Combined exclusion stage is not pure composition attrition or nonresponse.",
  "effect_estimation": false,
  "replicate_variance": false,
  "model_calibration": false
}