Answer:
lagged effect
Step-by-step explanation:
The lagged effect in advertising refers to a situation where continuous exposure to an advertisement will increase consumer awareness of the advertised product and eventually lead to the purchase of the product.
In Julie's case, it is the first time she sees a billboard advertising the South of the Border Restaurant and Motel, so the lagged effect is not present yet. She would need to see a lot more billboards before starting to consider eating or staying at that place.