Do yourself a favor and spend half an hour viewing the slides Dan Saffer’s excellent presentation on the art, and some of the science, of using lies to present research.
A few great points (in a total Colbert/wink-wink vein):
Skew the research subjects in your favor — your data is only as good as your participants. Make sure you use subjects that bolster your case.
Make unconscious bias, conscious — if you have two people to choose from; chose the one who looks (and probably thinks) most like you.
Toss out data you don’t like — cull your data; don’t let a research subject ruin your idea.
Having data doesn’t mean using it — just because something is known or given doesn’t mean you have to include it.
Answer questions you weren’t asked — things change when you do research, go ahead and change the scope of your research to fit these changes.
Use these words — “It’s a subjective art.” When anyone challenges your data, just recite those words again — “Hey, research is a subjective art.”