There are yet many other aspects that editing entails. But that primarily depends on who does the editing work. Say for example, you as a writer edit your paper, might not loook into these many details while a professional editor would check from varied angles.
Laura, to seek people’s opinion with the use of long questions, you can increase the number of options in your Questionnaire. Also, add more Subjective Questions than Multiple Choice Objective Questions.
Very true that an acknowledgement brings smile to a readers face because somehow they feel that the author is grateful for the help and support offered to him.