Both independent and dependent clauses express complete thoughts. have a subject and verb. do not express complete thoughts. do not have a subject but do have a verb.

Shauna has collected a variety of sources for her research about charlie chaplin’s impact on american cinema. in performing her preliminary evaluation of each source, shauna should-thoroughly review and examine the content.-perform a quick search to determine the author’s reliability.-check whether the author agrees with experts on the subject.-decide whether it will be useful in her final essay.