A variable is more concrete than a concept. A concept is more concrete than a construct. Which one is the most abstract?
a. Construct
b. Concept
c. Variable
d. Measurement strategy
ANS: A
A concept is a term that abstractly describes and names an object, a phenomenon, or an idea, thus providing it with a separate identify or meaning. At high levels of abstraction concepts have general meanings and are sometimes referred to as constructs. Concepts are often described as the building blocks of theory. Abstract concepts are descriptive but may not be as applicable to clinical practice or research because of their abstractness. To make a concept more concrete, one identifies how it can be measured or observed. These measurable terms are referred to as variables. A variable is more specific than a concept and implies that the term is clearly defined and measurable. The word variable implies that the numerical values associated with the term vary from one instance to another.
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