Theoretical Constructs, Concepts, and Applications
Daniel Udo-Akang

Abstract
This paper discusses the importance of theory to research and includes a discussion of how theory is conceptualized. Researchers have debated the definition of theory for many years, with many theorists using typologies and classifications systems to describe the types of theory, in the context of purpose, functions, boundaries, and goals.Theory that is driven by research is directly relevant to practice and beneficial to any field of study. The systematic nature of theory is to provide an explanation of a problem, to describe the distinguishing innovative features of a phenomenon, and to provide predictive utility. Research without theory has no foundation; likewise, theory depends on research to provide proof of the theories correctness.
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