The techniques described in the post could be used in isolation; only the last was about non-forecast estimates. I agree that these are much, much tougher than ones with definitive answers. They may need pretty strict filtering of participants, and would be the least accepted.
The techniques described in the post could be used in isolation; only the last was about non-forecast estimates. I agree that these are much, much tougher than ones with definitive answers. They may need pretty strict filtering of participants, and would be the least accepted.