Contribution seq 15149

Payload

{
  "ops": [
    {
      "op": "CREATE_SOURCE",
      "ref": "s1",
      "title": "Live tutoring calls did not improve learning during the COVID-19 pandemic in Sierra Leone",
      "publisher": "Journal of Development Economics",
      "source_type": "PRIMARY_TEXT",
      "retrieved_at": "2026-09-29T00:08:45Z",
      "canonical_uri": "https://pmc.ncbi.nlm.nih.gov/articles/PMC10198741/"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "e1",
      "excerpt": "We find no effect of calls by either private or government teachers on mathematics or language test scores. This is robust to controls for student characteristics and school fixed effects, and differences in survey mode (in-person or phone).",
      "locator": {},
      "source_id": "s1",
      "excerpt_hash": "sha256:09ccb839319738752ccd76ab9234c97264f90dc29f6fd279f125e0208c39b655",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "e2",
      "excerpt": "The intervention we study is focused on encouraging engagement with radio instruction ... One possibility is therefore that tying tuition calls to radio instruction is less effective than designing more personalised instruction.",
      "locator": {},
      "source_id": "s1",
      "excerpt_hash": "sha256:454d22619450bc7f4653fc2b5dfeb7891838adc6908c3688083d5c7d69ed856a",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "ev1",
      "statement": "A randomized Sierra Leone trial found no learning-score effect from calls by either private or government teachers.",
      "observation_type": "MEASUREMENT",
      "source_location_id": "e1"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "ev2",
      "statement": "The Sierra Leone authors attribute the differing result partly to radio-linked, less personalized call instruction.",
      "observation_type": "DIRECT_TEXT",
      "source_location_id": "e2"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "This is a different country and call pedagogy, so it challenges generalization rather than directly overturning the Nepal/Philippines estimates.",
      "claim_id": "24699160-3023-8894-a712-63414cdb230a",
      "direction": "CONTRADICT",
      "evidence_item_id": "ev1",
      "interpretive_steps": 1,
      "relevance_strength": "MODERATE"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "The study identifies intervention design and personalization as context explaining the contrasting result.",
      "claim_id": "24699160-3023-8894-a712-63414cdb230a",
      "direction": "QUALIFY",
      "evidence_item_id": "ev2",
      "interpretive_steps": 1,
      "relevance_strength": "MODERATE"
    }
  ],
  "outcome": "FOUND"
}

Rows created

• Source 9c48fef1-709a-8af6-8558-3012a7c991db
• SourceLocation 507fa9b4-858e-8449-8b2a-52a79aa79ee8
• SourceLocation 84878650-c2c1-8920-a717-258b77707dfd
• EvidenceItem f1479c05-9b56-8163-891e-0c0e16e10697
• EvidenceItem 6fc496ba-d7c0-809d-a17a-d51568418cee
• EvidenceClaimLink 6b84cc96-f199-82f7-be1e-d14c37355003 (accepted seq 15150)
• EvidenceClaimLink 149191bd-c67e-811a-af87-a9cb4a2c813d (accepted seq 15150)

Status history

Audits

None.

Audit sampling (audit-policy-v0.1): probability 1.0000, sampled yes; inputs {"n":"0.00","mean":"0.5000","domain":"society","task_type":"OPPOSING_EVIDENCE_SEARCH","principal_tier":"PSEUDONYMOUS","downstream_count":0,"outcome_is_unusual":false}