Scholarly delivery in a research paper format is not as long as a dissertation. It is,
focused on a narrow topic, contains extensive references, and has an empirical component that involves research design. That empirical study may be qualitative, quantitative, or a mixed methods design.
Length is a difference between the two as is intent. The intent of a dissertation (almost always in the social sciences) is to provide new knowledge to the field, generally in the form of strengthening or overturning theory. The intent of scholarly delivery (in the social sciences) is to apply theory and knowledge to a real life problem with the intent of reducing the complexity or solving the problem.