This is appropriate because outcomes are unknown until you've completed the study. 63-70; Resources for Writers: Introduction Strategies. However, anyone can look a word up in the dictionary and a general dictionary is not a particularly authoritative source because it doesn't take into account the context of your topic and doesn't offer particularly detailed information.
After you complete writing the body of the paper, go back and review introductory descriptions of the structure of the paper, the method of data gathering, the reporting and analysis of results, and the conclusion. Also, placed in the context of a particular discipline, a term or concept may have a different meaning than what is found in a general dictionary.
Christians called these conflicts the Crusades because they were fighting under the sign of the cross to save the holy lands of the Bible from being desecrated by non-Christians.
An introduction gives the reader an idea of where you are going in your project so they can follow along.
Excellent, supervised after-school programs, more jobs available for teens, and healthy family relationships will go a long way towards ending this crisis in our society.
Example 2 During the Middle Ages in Europe and the Middle East there was much armed conflict between Christians and Muslims.
These gangs of teens have been committing a lot of violent crimes.
The victims of these crimes are both gang members and people outside of gangs.
Reviewing and, if necessary, rewriting the introduction ensures that it correctly matches the overall structure of your final paper. If you feel that you must seek out an authoritative definition, use a subject specific dictionary or encyclopedia [e.g., if you are a sociology student, search for dictionaries of sociology].
Delimitations refer to those characteristics that limit the scope and define the conceptual boundaries of your research. A good database for obtaining definitive definitions of concepts or terms is Credo Reference.