Attitude-toward-the-ad models are used to measure how people feel about an advertisement or an ad campaign. People are asked a series of questions about the ad, such as "Do you like the ad?" or "How do you feel about the message in the ad?" They then rate their answers on a scale (with numbers or words), which can show how people feel about the ad overall. The results can help businesses and organizations understand how effective their ads and campaigns are and how they can improve them.