I am aware of the convention of stating an abbreviation in brackets the first time it is used, e.g. "I did well in the Biology Admissions Test (BAT)".
However, I am having difficulties with when you are already writing inside a bracket, e.g. "(I did well in the Biology Admissions Test (BAT))". I am not sure if using a bracket inside a bracket is correct. Would something like "(I did well in the Biology Admissions Test, or BAT)" be more appropriate?
Any advice would be appreciated!