Final answer:
c. Pride in one's own ethnic identity restricts one's freedom of choice is NOT one of the assumptions of Ruiz's model of Chicano/Latino identity development; instead, the model values ethnic pride as promoting better mental health and providing resilience against discrimination.
Step-by-step explanation:
The Chicano/Latino identity development model introduced by Ruiz in 1990 outlines several assumptions surrounding the ethnic and cultural identity formation process. One of the assumptions that is NOT part of Ruiz's model would be: c. Pride in one's own ethnic identity restricts one's freedom of choice. This statement is contrary to the overall findings in the field, which suggest that a strong ethnic identity often correlates positively with mental health and can provide resilience against the negative effects of discrimination.
Assumptions that are part of Ruiz's model do include ideas such as the negative consequences that stem from forced assimilation, and the correlation between marginality and maladjustment. Additionally, the model identifies that a strong sense of pride in one's ethnic identity often has a positive correlation with mental health.