Table 6 Twin effect, surviving children... | Duke University Press

Table 6

Twin effect, surviving children

Sample	Expected α, No Control	Expected α, Control	α	SE	N
Pre-Fertility Decline
France, pre-1789	0.24	0.04^a	0.37	0.11	24,609
England, CAMPOP	0.22^a	0.05	0.00	0.08	76,239
England, pre-1880	0.45	0.08^a	0.70	0.13	52,706
Québec	0.33	0.05^a	0.24	0.05	324,202
Post-Fertility Decline
France, post-1800	0.12	0.03^a	0.37	0.15	8,132
England, 1900–1949	0.52	0.15^a	0.36	0.10	27,288

Sample	Expected α, No Control	Expected α, Control	α	SE	N
Pre-Fertility Decline
France, pre-1789	0.24	0.04^a	0.37	0.11	24,609
England, CAMPOP	0.22^a	0.05	0.00	0.08	76,239
England, pre-1880	0.45	0.08^a	0.70	0.13	52,706
Québec	0.33	0.05^a	0.24	0.05	324,202
Post-Fertility Decline
France, post-1800	0.12	0.03^a	0.37	0.15	8,132
England, 1900–1949	0.52	0.15^a	0.36	0.10	27,288

^aHypothesized coefficient is rejected at p = .05.