Sex workers (SW) are subject to social judgment and the associated attitudes, ranging from admiration to contempt. The presence of stereotypical attitudes toward SW is common and can be analyzed using the Stereotype Content Model (SCM), where the concepts of warmth and competence play a central role. The interweaving of both dimensions allows the identification of four emotions and corresponding political positions toward SW: admiration (non-interventionism), pity (abolitionism), contempt (prohibitionism), and fear (regulationism). From the SCM framework, this study offers the construction, validation and performance of a 25-item scale with a snowball sample of 1,543 participants residing in Spanish-speaking countries. The four-factor hypothesized model yielded adequate values. Internal consistency was sufficient on all factors, as was model-based reliability and convergent validity. The scale also showed measurement invariance between gender and age groups, suggesting that the measure is interpreted in a conceptually similar manner by respondents representing different genders or ages. Further analysis revealed that male participants scored significantly higher on admiration. Baby boomers showed less pity and contempt while Millennials showed more fear and less admiration. SW and those who know or work with SW showed less fear and pity and more admiration. The SCM and the process of developing social judgments offer us a way to understand the differences that underlie irreconcilable policy positions. Overcoming these differences requires mutual understanding from scientific frameworks instead of from ideological perspectives.