Judging validity

In an argument, evidence refers to facts, documentation, or testimony used to strengthen a claim, support an argument or reach a conclusion. An argument is usually the main idea, often called a "claim" or "thesis statement," backed up with evidence that supports the idea.

are a powerful means of convincing. They can come from reading, observation, or personal experience. Facts cannot be disputed, making them a strong form of evidence.

provide excellent support for an argument. Arguments employing amounts and numbers are concrete and therefore support claims because they use logic and facts.

from leading experts or authorities in their fields support a position. They serve as logical appeal and are accepted by other academics as an excellent way to back up claims.

from the writer's experience can enhance meaning and engage listeners. Personal examples make ideas concrete. These real-life examples allow listeners to relate to the issues personally.