Final answer:
If the income elasticity for DVDs is +1.5, it means that DVDs are a normal good.
Step-by-step explanation:
The income elasticity of demand measures the responsiveness of quantity demanded to changes in income. If the income elasticity for DVDs is +1.5, it means that a 1% increase in income will result in a 1.5% increase in the quantity demanded of DVDs. Since the income elasticity is positive, DVDs are considered a normal good.