PsycARTICLES includes all journal articles, book reviews, letters to the editor and errata from each journal. It also offers extensive backfile coveragenearly all American Psychological Association journals go back to Volume 1, Issue 1
When you need to broaden or narrow down your topic, ask yourself:
Who am I researching?
What am I researching?
What time period am I interested in?
Where is my research topic taking place?
Why does my research matter?