Both the validity and the reliability of the statistical techniques us
ed in data processing procedures constitute an important issue concern
ing the validity of inferences. A critical analysis developed on the d
ata processing techniques takes into account both their correct applic
ation and their ability to provide information from which to draw infe
rences with a testable relationship of correspondence between a piece
of information and an inferred sentence. This paper proposes an attemp
t to test the use of factorial techniques used to construct indicators
and of scaling techniques in order to determine semantic areas in the
sociological research praxis.