Tag: Spearman

March 25, 2026 / Mohammed looti

FACTOR ANALYSIS

The Conceptual Foundations of Factor Analysis Factor analysis represents a sophisticated family of multivariate statistical procedures primarily utilized to discern the underlying structure within a large set of observed variables. At its core, this methodology operates on the premise that the correlations between several observed indicators can be explained by a smaller number of unobserved, […]

November 28, 2025 / Mohammed looti

SPECIAL FACTOR

Historical Context and Origin of the Special Factor The concept of the Special Factor, denoted statistically as s, represents a cornerstone element within the influential psychometric framework known as the Two-Factor Theory of Intelligence. This foundational theory was formally introduced in 1904 by the prolific British psychologist and statistician, Charles Edward Spearman (1863–1945), fundamentally reshaping […]