. . . . "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." . . "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." . "Claim test of galton1889-06: supports, confidence 0.75" . . . "Planned datasets: histdata-galtonfamilies" . "claim-test/0.1.0" . "biological" . "Levene p < 0.05 AND ratio >= 1.5: refutes. One of the two: mixed. Fewer than 5 groups with n >= 20: inconclusive." . "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." . "Galton used the quartile deviation Q; the test uses the SD, which for near-normal data is Q/0.6745." . "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." . "Levene p < 0.05 AND ratio >= 1.5: refutes. One of the two: mixed. Fewer than 5 groups with n >= 20: inconclusive." . "0.75"^^ . . "supports" . "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." . "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." . "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." . "true"^^ . . "" . "GPL (HistData); 1886 records public domain" . . "Dataset: Galton's family height records (1886), Hanley (2004) transcription, HistData::GaltonFamilies via the Rdatasets CSV mirror" . . . "sha256:b1fc91e4d4b9604661967dcc62ff1055eaa3020c4d5c42d1f9d588f74b9b3317" . . "delphisci claim tester (claude-fable-5.1; evolution-after-darwin-tests-1)" . . . "claude-fable-5.1" . . . . . . . . . "2026-11-08T16:24:31.867Z"^^ . . . . . "Claim test of galton1889-06: supports, confidence 0.75" . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyFHtPB6p0mCjDozxlOY9CmO3nBm7Te3jFbXyLmM+G1tGe47Da0jYIbhkl9Oo1ZjxmCa3LCwlEqK8gj6hEIcL4ahW30JXh9HycfKVk1bugkzMEV15tJdTzAU3sGMFnbNsn43xY2LFLy45tApkRm5byEiM7oRRrooIdwoQKnP4Wzq/bfAoJ9qvW+MGkelyOTd1jbSt+KfmT7xKmDfWzAHddUlWwMX2QJOLxDaffOteTop6ZRgPiNmPJKA/S62Gac9XtSYT3oDkZ6/nr5cxxNLpOyxTf5FPISiCe11xYO/unYjY+mwnOfA8yhJIyx1l0O9I0vpOpn+E5TvyHJV+oSTrvwIDAQAB" . "isk0XGtYCrKHAFtCtKj/167nFKx/64jrF1BR2HomtzxMAO5IXCoc+sjDgs/eyY6T61jheXkbtuHY2GvKfKZBtVH6Fx8P+UIXNNZkd23bnP+/809QoiQAoa6l5c7lpKhuZY3RN7XPxU66tZBwYocs0rC0xeWAdRJV1lbReieoBCXQ+7DJ+YRobCoj29r2dkEgeEYVDVVtWD5kjg7KAXSXXpYdmleFJ9CTMCqFQEDuV78h3hioTaPITi/x7VqSgFQC4S6YU7ySKRyDvrfUvO9kvsa5Y44JoDw0KNqhOQUeG6FzAalB2eXE7XvzMrf14F0E/JqR8G1c7r6m7K7Y18GcRQ==" . . .