Probably 'for', but your overall meaning is unclear to me. Can you provide an actual research question and an associated example? Clive
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
HifaMoThe answer is helpful.I agree with Clive. Your meaning is unclear and it is foolish to be satisfied with the response so far until you have supplied a reasonable context.