Marketers can’t afford to fail their audience during retail’s second-biggest season.Back-to-school marketing is a high-stakes game. Families are stressed. Brands are scrambling. And everyone’s fighting for the same attention span. But what if half your media budget never even makes it to the right household?That’s the risk when you trust unvalidated consumer data.New data from Truthset reveals just how far off-target many back-to-school campaigns might be. According to Truthset’s Qu...