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Table 4 Sociodemographic ordinal variables

From: Acceptability of genetically engineered algae biofuels in Europe: opinions of experts and stakeholders

Variable nameAnswers
Age< 20 years
20–30 years
31–60 years
> 61 years
Educational levelDid not complete high school
High school
Bachelor’s degree
Master’s degree
Other university degree
PhD
Experience in algae industryNever
< 3 years
3–10 years
> 10 years