https://w3id.org/np/RAPnjXJ_bRMk2ow-AzmXsBtvSzuyilP0UPFmzzIhfIXds/Head https://w3id.org/np/RAPnjXJ_bRMk2ow-AzmXsBtvSzuyilP0UPFmzzIhfIXds http://www.nanopub.org/nschema#hasAssertion https://w3id.org/np/RAPnjXJ_bRMk2ow-AzmXsBtvSzuyilP0UPFmzzIhfIXds/assertion https://w3id.org/np/RAPnjXJ_bRMk2ow-AzmXsBtvSzuyilP0UPFmzzIhfIXds http://www.nanopub.org/nschema#hasProvenance https://w3id.org/np/RAPnjXJ_bRMk2ow-AzmXsBtvSzuyilP0UPFmzzIhfIXds/provenance https://w3id.org/np/RAPnjXJ_bRMk2ow-AzmXsBtvSzuyilP0UPFmzzIhfIXds http://www.nanopub.org/nschema#hasPublicationInfo https://w3id.org/np/RAPnjXJ_bRMk2ow-AzmXsBtvSzuyilP0UPFmzzIhfIXds/pubinfo https://w3id.org/np/RAPnjXJ_bRMk2ow-AzmXsBtvSzuyilP0UPFmzzIhfIXds http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.nanopub.org/nschema#Nanopublication https://w3id.org/np/RAPnjXJ_bRMk2ow-AzmXsBtvSzuyilP0UPFmzzIhfIXds/assertion https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test http://purl.org/dc/terms/description Children grouped by mid-parent height rounded to the inch; groups with n >= 20; Levene's test (median-centred) across groups and the ratio of largest to smallest group SD. https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test http://www.w3.org/1999/02/22-rdf-syntax-ns#type https://w3id.org/delphi/ontology/Assessment https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test http://www.w3.org/2000/01/rdf-schema#comment Measured: 0.3092 Levene p-value across mid-parent groups (n = 893, max/min SD ratio 1.467). Interpretation: Galton reported Q 'roughly the same' across co-fraternities, 'a trifle larger' for tall mid-parents; the test allows that trifle (ratio under 1.5) and asks whether a standard heteroscedasticity test rejects equal spread. https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test http://www.w3.org/2000/01/rdf-schema#label Claim test of galton1889-06: supports, confidence 0.75 https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test http://www.w3.org/2000/01/rdf-schema#seeAlso https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/evolution-after-darwin/galton1889-06/result.json https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test http://www.w3.org/ns/prov#wasAttributedTo https://w3id.org/delphi/resource/agent/delphisci-claim-tester-claude-fable-5-1 https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/admissibleDatasets Planned datasets: histdata-galtonfamilies https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/assessmentType claim-test/0.1.0 https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/dataKind biological https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/disconfirmingObservation Levene p < 0.05 AND ratio >= 1.5: refutes. One of the two: mixed. Fewer than 5 groups with n >= 20: inconclusive. https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst All four Galton tests use this one dataset, which is the material Galton himself summarised; they are a recount with modern regression, not independent evidence, and count as one dataset for any aggregate. https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst Galton used the quartile deviation Q; the test uses the SD, which for near-normal data is Q/0.6745. https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/expectedObservation Children grouped by mid-parent height to the nearest inch (groups with n >= 20 only): Levene's test (median-centred) p > 0.05 AND ratio of largest to smallest group SD < 1.5: supports. https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/failCriterion Levene p < 0.05 AND ratio >= 1.5: refutes. One of the two: mixed. Fewer than 5 groups with n >= 20: inconclusive. https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/hasConfidence 0.75 https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/hasEvidence https://w3id.org/delphi/resource/evidence/galton1889-06--claim-test--dataset-1 https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/hasVerdict supports https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/hypothesis If the spread of children's heights is the same whatever the mid-parent height, the within-group standard deviation of child height (daughters x1.08) does not differ across mid-parent height groups. https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/inferenceMethod Children grouped by mid-parent height rounded to the inch; groups with n >= 20; Levene's test (median-centred) across groups and the ratio of largest to smallest group SD. https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/passCriterion Children grouped by mid-parent height to the nearest inch (groups with n >= 20 only): Levene's test (median-centred) p > 0.05 AND ratio of largest to smallest group SD < 1.5: supports. https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/ontology/preregistered true https://w3id.org/delphi/resource/claim/galton1889-06 https://w3id.org/delphi/ontology/hasAssessment https://w3id.org/delphi/resource/assessment/galton1889-06--claim-test https://w3id.org/delphi/resource/evidence/galton1889-06--claim-test--dataset-1 http://purl.org/dc/terms/description https://w3id.org/delphi/resource/evidence/galton1889-06--claim-test--dataset-1 http://purl.org/dc/terms/license GPL (HistData); 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