Everybody has a worldview. A worldview is a person’s view of the world, to put it short. It is how a person understands the world around them based on a multitude of factors. Person A may have the worldview that there is no God and that all things happen through natural processes. Person B may have the worldview that there is a God and He created everything. Person A sees a human being and understands that the human evolved from a common apelike ancestor millions of years ago. Person B sees a human being and understands that God created humans in His own image on the 6th day of creation. Person A sees how there are various species of dogs and understands this to be a form of evolution. Person B sees the same dogs, but understands that these are variations within the animal kind, which some refer to as micro-evolution. Both individuals will understand everything that happens in their life and around them based on their worldview.
Some may say that scientists are unbiased in their research and only respond to what the evidence shows, but all scientists have a worldview. For more information, please see the article about Evidence.
To keep with the topic of Creation and Evolution, check out the following two websites: “Talk origins” (a secular interpretation of the evidence, and “True Origins” (a rebuttal/creationist interpretation of the evidence). In addition, Talk Origins has a list of Creationist Claims that they have rebuttals for. Likewise, Creation Wiki has answers to those rebuttals here.