Concepts, Constructs, Variables and Theory: A Clarification
Concepts • • • •
Building blocks of theory Abstract Represent broad, general idea Not directly observable
Theory • Systematic; abstract explanation of some aspect of reality • Primary goal is to provide a framework that links research and practice and contributes to making findings a meaningful and generalizable
Function Theory Provides • Structure for interpretation of findings • Means for summarizing and explaining observations for an isolated study • Source to generate hypothesis • Framework for guiding research • Guide for selecting appropriate method • Basis to describe, explain or predict factors influencing nursing outcomes
Constructs • Concepts specified in such away they are observable in the real world • Invented
Variables • Concepts that are observable and measurable • Have a dimension that can vary • Narrow in meaning