Participatory Action Research is a popular approach to insider research. One of the keys to this approach to research is that it involves those being researched in at least part the process of doing the research. One of the reasons this can be an effective approach to encouraging change is that the success of organizational change is highly dependent on the acceptance of that change by those affected by it. Involving research participants in the research increases their knowledge of the reasons for organizational change and sometimes gives them a say in the outcome. This participation has the potential to increase their support for organizational change.
Here is an interesting article that explores one aspect of this issue: