Comparisons

Orthogonal Rotation vs. Oblique Rotation

A comprehensive comparison of orthogonal and oblique rotation methods in factor analysis, examining mathematical theory,...

November 8, 2026 • Dr. Mohammed Looti
Comparisons

Discriminant Function vs. Factor Analysis

A comprehensive comparative guide between Discriminant Function Analysis and Factor Analysis, examining mathematical bases, applications,...

November 8, 2026 • Dr. Mohammed Looti
Theorists

Raymond Cattell – 1905 1998

An exhaustive academic examination of Raymond B. Cattell (1905–1998), his pioneering psychometrics, the 16PF trait...

November 8, 2026 • Dr. Mohammed Looti
Theorists

John B. Carroll – 1916 2003

An exhaustive academic treatise examining the life, psychometric theories, and methodological innovations of John Bissell...

October 30, 2026 • Dr. Mohammed Looti
Theorists

Charles Spearman – 1863 1945

A comprehensive academic examination of Charles Spearman (1863–1945), pioneer of psychometrics, developer of factor analysis,...

October 7, 2026 • Dr. Mohammed Looti
Scales

Aspects of Identity Questionnaire (AIQ-IV)

The Aspects of Identity Questionnaire (AIQ-IV) is an established 45-item psychometric instrument assessing personal, relational,...

October 1, 2026 • Dr. Mohammed Looti
Scales

The Satisfaction with Life Scale (SWL)

A comprehensive psychometric guide to the Satisfaction with Life Scale (SWLS), developed by Ed Diener...

October 1, 2026 • Dr. Mohammed Looti
Scales

Value Profile

The Value Profile, developed by Robert F. Bales and Arthur S. Couch (1969), is a...

September 30, 2026 • Dr. Mohammed Looti
Scales

Cross-Cultural Dimensions of Religiosity

A comprehensive psychometric guide to the Cross-Cultural Dimensions of Religiosity Scale (CCDRS) developed by Gordon...

September 30, 2026 • Dr. Mohammed Looti