The final plans for change can be more consensual, and based on better information. At the same time, the research methodology is strengthened and made efficient because of the increasing detail of the information and its careful interpretation. In the early stages the questions and answers are general. You sacrifice some of the richness of some approaches but gain substantial economies, and precision, in repayment. Economy in reporting I have examined or otherwise read some distressingly long action research reports on occasion.
Redundancy is often high.
The amount of data reported is often massive. To make matters worse, if you don't use traditional methodologies you have to take more care to justify your approach. Reducing the amount of data to be reported would often help. If you report only the conclusions the reader is unable to verify your interpretation or check its adequacy. The answer is to be found, first, in being clear what the report is about.