Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Social dominance theory:

"

SDT states that an individual's level of discrimination and domination can be conceptualised, or measured, with the social dominance orientation (SDO). This is an individual set of beliefs, sometimes viewed as something akin to a personality-trait, which describes the actors views on social domination and the extent to which they will aspire to gain more power and climb the social ladder. For instance, the SDO6 scale measures social dominance orientation by agreement with statements such as "Sometimes other groups must be kept in their place" and "It's probably a good thing that certain groups are at the top and other groups at the bottom."[1]