Tal cual. Given the kind of language this person uses I think she would have use the same expression in English. It means factors such as birth, race, etc., that place people in positions for reasons beyond their control.

"Ascription occurs when social class or stratum placement is primarily hereditary. In other words, people are placed in positions in a stratification system because of qualities beyond their control. Race, sex, age, class at birth, religion, ethnicity, species, and residence are all good examples of these qualities. Ascription is one way sociologists explain why stratification occurs."
https://en.wikipedia.org/wiki/Ascriptive_inequality

"Muchos análisis tratan de medir la mezcla exacta de logro frente a los factores adscriptivos que determinan dónde acaban las personas en el sistema de clases"
http://antropologia-online.blogspot.com.es/2010/10/perspecti...


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Note added at 48 mins (2016-11-01 21:15:42 GMT)
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"Ascriptive recruitment refers to beliefs and knowledge that are made available or denied to individuals on the basis of age, gender, culture, socioeconomic status, or other factors [...] Ascriptive recruitment probably figures prominently in the socialization of undergraduate music education majors during childhood. For this reason, and because problems with ascriptive factors such as gender and ethnicity are broached in the research literature [...]"
The New Handbook of Research on Music Teaching and Learning, 676
https://books.google.es/books?id=35ianv5yuvcC&pg=PA676

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Note added at 2 hrs (2016-11-01 22:49:04 GMT)
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Encantado, MEW :)