Any input should be sent by early June, if possible. The procedures for giving viewers feedback were discussed. It was pointed out that the threshold might be different with feedback compared with when there is no feedback. It was asked if there was a procedure that would not give the viewer feedback. Andrew Watson replied that there are auditing procedures that could be used, but the purpose of the feedback is that it makes the viewers feel better and, in addition, there is the theoretical possibility that the compressed sequence could look better than the original sequence.
Feedback is useful in identifying which is the test sequence.
He said that we should use feedback for the first reason, but it wouldn't make a big difference in the results. While tests in psychology are usually double blind, in psychophysical tests you do give feedback. Others supported the use of feedback and it was suggested sacrificing some trials, four were suggested, for training. It was recommended to have a post-test interview with the participants. This was agreed on, provided there was time.