https://w3id.org/np/RAig6pgf_yyKm28wyBFMnMqO5QPDoMI5m7Lj2XfxUC4Ms/Head https://w3id.org/np/RAig6pgf_yyKm28wyBFMnMqO5QPDoMI5m7Lj2XfxUC4Ms http://www.nanopub.org/nschema#hasAssertion https://w3id.org/np/RAig6pgf_yyKm28wyBFMnMqO5QPDoMI5m7Lj2XfxUC4Ms/assertion https://w3id.org/np/RAig6pgf_yyKm28wyBFMnMqO5QPDoMI5m7Lj2XfxUC4Ms http://www.nanopub.org/nschema#hasProvenance https://w3id.org/np/RAig6pgf_yyKm28wyBFMnMqO5QPDoMI5m7Lj2XfxUC4Ms/provenance https://w3id.org/np/RAig6pgf_yyKm28wyBFMnMqO5QPDoMI5m7Lj2XfxUC4Ms http://www.nanopub.org/nschema#hasPublicationInfo https://w3id.org/np/RAig6pgf_yyKm28wyBFMnMqO5QPDoMI5m7Lj2XfxUC4Ms/pubinfo https://w3id.org/np/RAig6pgf_yyKm28wyBFMnMqO5QPDoMI5m7Lj2XfxUC4Ms http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.nanopub.org/nschema#Nanopublication https://w3id.org/np/RAig6pgf_yyKm28wyBFMnMqO5QPDoMI5m7Lj2XfxUC4Ms/assertion https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test http://purl.org/dc/terms/description fetch.py downloads the two spreadsheets (Dryad serves them behind a browser proof-of-work challenge; the files were obtained with headless Chrome, checksummed, and a 49 KB derived table committed under derived/). analysis.py parses the photoreviewed counts (best estimate before any parenthesised range), keeps heads whose two counts are adjacent members of the Fibonacci, Lucas, double-Fibonacci or F4 sequence, and scores a head right-handed if the larger family is clockwise. The proportion right-handed is tested against 0.5 with a two-sided exact binomial test, pooled and within each pair class; the submitter counts are analysed the same way as a replication. https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--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/thompson1917-ch14-06--claim-test http://www.w3.org/2000/01/rdf-schema#comment Measured: 0.5257 proportion of heads whose larger parastichy family runs clockwise (photoreviewed counts) (n = 272, exact 95% CI 0.465-0.586; two-sided binomial P = 0.43). Interpretation: Thompson's 'direction' of the five-series (right- versus left-handed spiral) is mapped to the chirality of the larger parastichy family of a Fibonacci-type pair, scored as clockwise or anticlockwise in a fixed viewing convention (the seed face of the head as photographed). Thompson's own counts are of Norway spruce cones; no public per-cone table of those counts exists, so the test is a replication in another phyllotactic system (sunflower capitula), which the claim explicitly extends to ('phyllotactic systems generally'). Thompson's own 224:243 split is reported alongside for comparison but is not used as data. https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test http://www.w3.org/2000/01/rdf-schema#label Claim test of thompson1917-ch14-06: supports, confidence 0.85 https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test http://www.w3.org/2000/01/rdf-schema#seeAlso https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/thompson-growth-form/thompson1917-ch14-06/result.json https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test http://www.w3.org/ns/prov#wasAttributedTo https://w3id.org/delphi/resource/agent/delphisci-claim-tester-claude-fable-5-1-thinking-high https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/admissibleDatasets Planned datasets: turings-sunflowers-dryad-f9k77 https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/assessmentType claim-test/0.1.0 https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/dataKind biological https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/disconfirmingObservation Pre-registered. Pooled |p - 0.5| > 0.10 with two-sided exact binomial P < 0.01 (a substantial and significant excess of one chirality), or the same pattern in the two most frequent pair classes. Any other outcome is 'mixed' (e.g. a small but significant bias with |p - 0.5| <= 0.10) or 'inconclusive' (fewer than 100 usable heads: underpowered). https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst Heads whose two counts did not form an adjacent Fibonacci-type pair (about 40% of photoreviewed heads with two counts) were excluded by the pre-registered rule; chirality in disordered heads is not tested. https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst The 21/34 class (n = 29) leans right-handed (20:9, P = 0.06); it passes the pre-registered class rule only through its P value, and the two large classes lean in opposite directions, consistent with chance. https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst The pass criterion tolerates a true bias of up to 10 percentage points; the 95% CI (0.465-0.586) excludes biases larger than about 9 points in either direction. https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst The sample is a citizen-science collection of mostly one cultivated species grown in many gardens; counts are subjective, but handedness (which family is larger and which way it runs) is robust to small count errors. https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/evidenceAgainst The test is on sunflower capitula, not on the Norway spruce cones Thompson cites; his spruce tally is not available as a per-cone dataset and was not re-analysed. https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/expectedObservation Pre-registered. In the Turing's Sunflowers data (Helianthus annuus), restrict to heads with both a clockwise and an anticlockwise parastichy count that together form an adjacent pair of one Fibonacci-type sequence (Fibonacci, Lucas, double Fibonacci or F4, as defined by Swinton et al. 2016). Define a head as right-handed when its larger family is clockwise. Pooled over all such heads, the proportion p of right-handed heads must satisfy |p - 0.5| <= 0.10 and a two-sided exact binomial test against 0.5 must give P >= 0.05. In addition, in each pair class with n >= 20 heads, |p - 0.5| <= 0.15 or the binomial P >= 0.05. Primary counts are the photoreviewed counts (author's annotation file); the submitter counts are a secondary replication. https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/failCriterion Pre-registered. Pooled |p - 0.5| > 0.10 with two-sided exact binomial P < 0.01 (a substantial and significant excess of one chirality), or the same pattern in the two most frequent pair classes. Any other outcome is 'mixed' (e.g. a small but significant bias with |p - 0.5| <= 0.10) or 'inconclusive' (fewer than 100 usable heads: underpowered). https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/hasConfidence 0.85 https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/hasEvidence https://w3id.org/delphi/resource/evidence/thompson1917-ch14-06--claim-test--dataset-1 https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/hasVerdict supports https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/hypothesis Within one species, heads (or cones) carrying a given parastichy pair are split about equally between the two chiralities: the larger parastichy family runs clockwise in roughly half of specimens and anticlockwise in the other half, as in Thompson's 224 right-handed versus 243 left-handed among 467 five-eight spruce cones. https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/inferenceMethod fetch.py downloads the two spreadsheets (Dryad serves them behind a browser proof-of-work challenge; the files were obtained with headless Chrome, checksummed, and a 49 KB derived table committed under derived/). analysis.py parses the photoreviewed counts (best estimate before any parenthesised range), keeps heads whose two counts are adjacent members of the Fibonacci, Lucas, double-Fibonacci or F4 sequence, and scores a head right-handed if the larger family is clockwise. The proportion right-handed is tested against 0.5 with a two-sided exact binomial test, pooled and within each pair class; the submitter counts are analysed the same way as a replication. https://w3id.org/delphi/resource/assessment/thompson1917-ch14-06--claim-test https://w3id.org/delphi/ontology/passCriterion Pre-registered. In the Turing's Sunflowers data (Helianthus annuus), restrict to heads with both a clockwise and an anticlockwise parastichy count that together form an adjacent pair of one Fibonacci-type sequence (Fibonacci, Lucas, double Fibonacci or F4, as defined by Swinton et al. 2016). Define a head as right-handed when its larger family is clockwise. Pooled over all such heads, the proportion p of right-handed heads must satisfy |p - 0.5| <= 0.10 and a two-sided exact binomial test against 0.5 must give P >= 0.05. In addition, in each pair class with n >= 20 heads, |p - 0.5| <= 0.15 or the binomial P >= 0.05. 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