Noun
A fictitious drug, sometimes included in academic questionnaires to test the reliability of respondents.
Usage- Uncountable
- Examples
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On how many occasions (if any) have you used derbisol during the past 30 days?
More examples (1)
Students were also asked if they had used a fictitious substance (Derbisol), and the students that responded positively to this item (n = 6 in Queenstown and n = 3 in Umtata) were excluded from the study.