The Social Dominance Orientation Scale 6 items can be found in: Pratto, Felicia, Jim Sidanius, Lisa M. Stallworth, and Bertram F. Malle (1994) "Social Dominance Orientation: A Personality Variable Predicting Social and Political Attitudes" Journal of Personality and Social Psychology, Vol. 67, No. 4, pp. 741-763 (link to open-access pdf).
The scale is administered as a sequence of agree-disagree Likert scale questions. Items 9-16 should be reverse-coded.
1. Some groups of people are simply inferior to other groups. 2. In getting what you want, it is sometimes necessary to use force against other groups. 3. It’s OK if some groups have more of a chance in life than others. 4. To get ahead in life, it is sometimes necessary to step on other groups. 5. If certain groups stayed in their place, we would have fewer problems. 6. It’s probably a good thing that certain groups are at the top and other groups are at the bottom. 7. Inferior groups should stay in their place. 8. Sometimes other groups must be kept in their place. 9. It would be good if groups could be equal. 10. Group equality should be our ideal. 11. All groups should be given an equal chance in life. 12. We should do what we can to equalize conditions for different groups. 13. Increased social equality is beneficial to society. 14. We would have fewer problems if we treated people more equally. 15. We should strive to make incomes as equal as possible. 16. No group should dominate in society.