The Goldberg Depression Test was developed by New York psychiatrist Dr. Ivan K. Goldberg to help individuals determine whether or not they might need to see a mental health professional about possible depression. The 18 questions in the test are designed to assess how you have felt in the previous week, and can also be used on a weekly basis to chart changes in mood or mood intensity. Examples of the types of assessments on the Goldberg Depression Test include "My future seem hopeless," "it is hard for me to concentrate on reading," and "the pleasure and joy has gone out of my life."
The Goldberg Depression Test is one of several tests that can be used to assess whether or not you're going through a tough time or are in a state of depression. You may want to start here, and then explore further for more information.