25/04/12: The paucity of predictive power in polling




The Current from CBC Radio (Highlights) show

Summary: For Alberta voters this week, the bloom came off the Wildrose party and left pollsters blushing the deepest shade of red, in a province that remained PC blue. Poll after poll predicted a wildrose victory in Alberta.... political journalists gobbled up the misleading data, some boldly wrote about the end of a dynasty So how did the science of public opinion get it so wrong?