Table 4.

Chi-square (χ²) contributions and differences of each birth cohort for each climate change belief.

	Climate change reality					Climate change caused by humans
Birth cohort	χ2A	χ2B	χ2ΔAB	χ2C	χ2ΔBC	χ2A	χ2B	χ2ΔAB	χ2C	χ2ΔBC
1995–1991	1768	1078	689	1032	46	1320	547	773	482	65
1990–1986	2032	1161	872	1139	21	1797	791	1006	764	27
1985–1981	1784	1027	757	1021	6	1472	675	797	674	1
1980–1976	1674	1003	671	970	33	1412	654	758	634	20
1975–1971	1677	986	690	961	26	1617	782	835	772	10
1970–1966	1724	1037	687	1019	18	1631	828	803	822	6
1965–1961	2028	1222	806	1220	1	1707	843	864	838	5
1960–1956	1889	1187	702	1163	24	1639	776	864	769	7
1955–1951	1601	986	615	985	1	1566	759	806	759	0
1950–1946	1563	898	665	885	13	1412	647	765	631	16
1945–1941	1079	625	454	617	8	954	467	487	450	16
1940–1936	926	702	224	695	6	751	517	233	503	14

Chi-square (χ²) contribution differences (χ²Δ) between the key competing models are shown. χ²A Chi-square contribution of the age-based (constrained) model, χ²B Chi-square contribution of the intermediate model where intercepts are freely estimated but slopes are constrained, χ²C Chi-square contribution of the cohort-based (unconstrained) model.