Why would the answer be locked in after three responders? They should also be partially discounting on the likelihood that the two people after the first altered their answers to conform. Each successive response in agreement is weaker evidence than the one before it, but I can’t see any reason why three responders would constitute a magic point beyond which additional responders account for negligible evidence.
With common knowledge of sufficiently low variance in the confidence people have in their own direct observations, two answers would be enough for lock in. With greater variance it took more. Not knowing the actual variance, I said 3 because it fit the data.
Why would the answer be locked in after three responders? They should also be partially discounting on the likelihood that the two people after the first altered their answers to conform. Each successive response in agreement is weaker evidence than the one before it, but I can’t see any reason why three responders would constitute a magic point beyond which additional responders account for negligible evidence.
With common knowledge of sufficiently low variance in the confidence people have in their own direct observations, two answers would be enough for lock in. With greater variance it took more. Not knowing the actual variance, I said 3 because it fit the data.