. . . . "OLS slope of child height (daughters x1.08) on father height alone and on 1.08 x mother height alone; family-cluster bootstrap intervals." . . "Measured: 0.427 slope of child height on father height (inch per inch); mother slope in extra (n = 934, father [0.336, 0.518]; mother (x1.08) [0.206, 0.444]). Interpretation: Galton derived one-third by halving two-thirds and reported that direct observation gave about two-fifths, which he disregarded. The test is that direct observation on his own records. Single-parent slopes are expected to exceed half the mid-parent slope whenever spouses' heights are correlated." . "Claim test of galton1889-03: mixed, confidence 0.6" . . . "Planned datasets: histdata-galtonfamilies" . "claim-test/0.1.0" . "biological" . "Both intervals exclude 0.333 with nearest bound more than 0.05 away: refutes. One of the two excludes it, or both exclude it by 0.05 or less: mixed. Fewer than 500 children: 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 reached one-third by halving the mid-parent value and said direct observation gave about two-fifths; a single-parent slope above one-third is expected whenever spouses' heights correlate positively, and the spouse correlation is reported in extra." . "Both single-parent slopes have 95% family-cluster bootstrap intervals that contain 0.333: supports." . "Both intervals exclude 0.333 with nearest bound more than 0.05 away: refutes. One of the two excludes it, or both exclude it by 0.05 or less: mixed. Fewer than 500 children: inconclusive." . "0.6"^^ . . "mixed" . "If regression from a single parent is one-third, the OLS slope of child height (daughters x1.08) on father height alone, and on 1.08 x mother height alone, are each one-third." . "OLS slope of child height (daughters x1.08) on father height alone and on 1.08 x mother height alone; family-cluster bootstrap intervals." . "Both single-parent slopes have 95% family-cluster bootstrap intervals that contain 0.333: 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 galton1889-03: mixed, confidence 0.6" . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyFHtPB6p0mCjDozxlOY9CmO3nBm7Te3jFbXyLmM+G1tGe47Da0jYIbhkl9Oo1ZjxmCa3LCwlEqK8gj6hEIcL4ahW30JXh9HycfKVk1bugkzMEV15tJdTzAU3sGMFnbNsn43xY2LFLy45tApkRm5byEiM7oRRrooIdwoQKnP4Wzq/bfAoJ9qvW+MGkelyOTd1jbSt+KfmT7xKmDfWzAHddUlWwMX2QJOLxDaffOteTop6ZRgPiNmPJKA/S62Gac9XtSYT3oDkZ6/nr5cxxNLpOyxTf5FPISiCe11xYO/unYjY+mwnOfA8yhJIyx1l0O9I0vpOpn+E5TvyHJV+oSTrvwIDAQAB" . "SG3HgLIPH0XDJyJ/Wvpr3aGkggN8OmSCePiOIE4YcVgVOo6J8d5WEY9JC7R0KAr6MShHBiIYY4aaCmR67vmbLzAI2iMfhb7CkJG16XUUw9lGNBuTJID4O/P7TdLAAzBojFZcI75+d2QjL8/oXleA0lpLib9pvYX8ARI6HjDetNZCxHUpf3EoZJBwlnxY7ub6ghcal+DVqKNN2JIzfiH+6+kJF8VshTO9F+WfekRudA3mjyIQAgcHYesNI/QsWlfyp1IHm/VFINAHShBd14bcuovbRmsr+f54TEA+yX/uLEGCp1HGVDRvaNiB1Jww4Zj927amilDKErch6FQMIWuexw==" . . .