# Verification checks (P4)

• Clean re-run of out/analysis.py: results.json byte-identical (cmp) -> PASS
• se positive: PASS
• CI contains tau: PASS
• CI symmetric: PASS
• tau = mean diff: PASS
• significance consistent with p and CI: PASS
• n_analysed = n_raw - removed (1000-0): PASS
• n_schools*25 = n_analysed: PASS
• 0<=icc<=1: PASS
• se_cluster/se_iid near sqrt(DEFF) (within 5%): PASS
• CR1 SE close to school-means Welch SE (within 5%): PASS