Table 2.

Reliability Comparisons and Example Items for Each Political-Attitude Scale and the ICAR-16

Scale	α	ω h	ω t	Number of items	Example item
Authoritarianism	.86	.74	.88	12	Obedience and respect for authority are the most important virtues children should learn.
Egalitarianism	.87	.79	.90	8	If wealth were more equal in this country, we would have many fewer problems.
Social liberalism	.86	.72	.89	11	The use of marijuana should be legal.
Economic liberalism	.84	.77	.90	6	The government is spending too little money on Social Security.
Retribution	.72	.64	.80	5	Those who hurt others deserve to be hurt themselves.
Religiousness	.89	.89	.92	9	How often do you attend religious services?
ICAR-16	.80	.64	.82	16	If the day after tomorrow is two days before Thursday, then what day is today?

Note: Political orientation is not included here because it was based on a single item (“What is your political orientation?”) rated on a 5-point scale (1 = extremely conservative, 5 = extremely liberal). Reliability scores are given for Cronbach’s α, McDonald’s ω hierarchical (ω _h ), and McDonald’s ω total (ω _t ) and were computed with the omega function of the psych package for R (Version 2.1.3; Revelle, 2017). ICAR-16 = 16-item short form of the International Cognitive Ability Resource.