NOTE: updated title to reflect the post is about results, not a survey itself.
Elizabeth at the Girl’s Guide links to a survey on PMO effectiveness (here) that provides some interesting, if not wholly unexpected, insights into the attributes of a strong PMO tick. The only false note was what the study apparently represents as the main objective of the PMO:
to provide a group dedicated to supporting and integrating operations across organizational boundaries. This is accomplished by providing services that either mitigate or directly address the root cause of the challenges being faced.
Does such an objective and approach make sense to you? Maybe it’s out of context — I haven’t downloaded the entire study — but does that objective and approach correspond to how your PMO sees its main objective? I guess that IMO and in our case, the role of a PMO is simple: make strategy happen.