Literature review allows researchers to discover what data are already 
          accumulated on their topics so that they don't "reinvent the wheel." 
        
        Psychology researchers: 
        
          
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                  Discuss ideas with colleagues and search the relevant literature 
                    for data already gathered in a prospective research area
 
                  Design and conduct tests to gather new evidence
 
                  Retest the evidence in different situations and with different 
                    subjects
 
                   Communicate the results of research in order to promote 
                    further research
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