The statement that is true about the test is
It has low reliability.
What is reliability?
Reliability refers to the consistency or dependability of a measurement tool. In this case, if the test does not cover a broad range of depressive symptoms, it may not be providing a comprehensive and reliable assessment of depression.
A reliable test should capture various aspects of the condition to ensure accurate and consistent results. The limited scope of the test may lead to an incomplete evaluation of depressive symptoms.