Students do not know when a reinforcer is coming, but know that if they continue to do their work, it will eventually appear. the students are being reinforced on what type of schedule?

Why do you think the soviet union opposed the marshall plan?

Before tuberculosis was understood to be a communicable disease, and before the discovery of antibiotics to treat it, a major outbreak could kill or cripple a significant portion of a nation’s labor force. how would such an event affect the economy? illustrate the effect by dragging to shift either the aggregate demand curve or the long-run aggregate supply curve.

Who is responsible for the making of laws in the federal government?