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Use the Boolean connector AND to narrow your search with your major subject words. You can use the connector OR to broaden your search. This connector can be used to combine synonyms or related words. Place subject words in "quotation marks" to search the words as a phrase.
An asterisk *(shift key 8) for variations of a word. For example, read* will retrieve articles with the words: reads, reading, and readers.
There are five ways to assess whether you should research a problem:
Ayiro, L. P. (2012). A Functional Approach to Educational Research Methods and Statistics : Qualitative, Quantitative, and Mixed Methods Approaches. Lewiston, N.Y.: Edwin Mellen Press.