What should I avoid when writing the conclusion of a research paper?

Before you can write your conclusion paragraph, you should know what to avoid. Here are some common errors.
Don't introduce a new topic. For example, if your essay has been about the loss of forests and possible solutions for the high consumption of wood products, don't end with a paragraph about another environmental concern, such as the disappearance of the California condor.
Don't trail off with a weak statement or a statement leaving your reader up in the air the way this ending does:
The Internet, free of regulation, has opened a world of information and ideas to everyone. Children enjoy learning at the computer.
Don't simply repeat your thesis or main idea in the same words.
Don't apologize for or suggest doubts about your thesis.