A psychologist is interested in finding out if the Beck Depression Inventory test gives consistent results. To study this, the psychologists gives 100 individuals who do not report any depressive symptoms the Beck Depression Inventory version A and version B. The 100 individuals were in the normal range on both tests. When the psychologist did the same study on 100 individuals who did report being depressed, they showed up in the depressed range with very similar or identical scores on both version A and version B. What type of reliability was the psychologist utilizing when evaluating the Beck Depression Inventory

“dear sir: it is with great reluctance, i trouble you on a subject, which does not fall within your province; but it is a subject that occasions me more distress, than i have felt, since the commencement of the war; and which loudly demands the most zealous exertions of every person of weight and authority, who is interested in the success of our affairs. i mean the present dreadful situation of the army for want of provisions, and the miserable prospects before us, with respect to futurity. it is more alarming than you will probably conceive, for, to form a just idea, it were necessary to be on the spot. for some days past, there has been little less, than a famine in camp. a part of the army has been a week, without any kind of flesh, and the rest for three or four days. naked and starving as they are, we cannot enough admire the incomparable patience and fidelity of the soldiery, that they have not been ere this excited by their sufferings, to a general mutiny or dispersion. strong symptoms, however, discontent have appeared in particular instances; and nothing but the most acitive efforts every where can long avert so shocking a catastrophe.” what’s the central idea?