ABSTRACT

One may observe that some individuals seem to be able to finish tasks more quickly and with

better results than others. From this phenomenon, the concept of efficiency is born.

signed, then the researcher constructs a way of looking at these concepts. The concept of

concept of efficiency may be operationalized as the construct of intelligence and measured

through IQ. Constructs are putting concepts into measurable research terms. Constructs are

also known as variables in the research tradition, especially when the construct is put in a

context that makes it describable or measurable.