• Factors that influenced perceived credibility include the doctor’s background and expertise. Her title as a doctors makes her more qualified to advertise the medical effects of toothpaste. Her knowledge about the topics makes her more trustworthy to the audience. She seems to know what she is talking about since she is a qualified medical specialist which makes the advertisement credible.
  • Factors that influenced perceived not credibility include’s personal stake and no expertise behind the advertisement. Most people who sell the products portrayed in picture B usually receive commission sales for  marketing such merchandise. Therefore, making them a not credible source, because they have a personal stake at risk for persuading the audience to adopt a particular position. In addition, the product being sold in Picture B is also too good to be true or no clinically proven. This makes advertisements, like Picture B, not a credible source, because experts are not behind it.
  • I found the attractive source effective, because the celebrity is portrayed to have such beautiful hair. Viewing this advertisement makes me want to buy the product and have luscious hair like the celebrity in the advertisement. This is typically the case, because attractive sources usually target the audience’s desires and wants through utilizing charming and desired celebrities.