Scales

Eysenck Personality Questionnaire-revised (EPQ-R)

The Eysenck Personality Questionnaire-Revised (EPQ-R) is a standard 100-item psychometric self-report inventory measuring Extraversion, Neuroticism,...

September 26, 2026 • Dr. Mohammed Looti
Scales

Five Factor Inventory

A comprehensive academic psychometric evaluation of the Five Factor Inventory (Buchanan Online Five-Factor Personality Inventory...

September 26, 2026 • Dr. Mohammed Looti
Scales

International Personality Item Pool (IPIP)

A comprehensive academic analysis of the International Personality Item Pool (IPIP) 50-item Big-Five Factor Markers,...

September 26, 2026 • Dr. Mohammed Looti
Scales

Woodworth Psychoneurotic Inventory

A comprehensive psychometric guide to the Woodworth Psychoneurotic Inventory (Personal Data Sheet), the first standardized...

September 25, 2026 • Dr. Mohammed Looti
Scales

Emotional reaction

A psychometric review of the Emotional Reaction Scale (ERS), a 20-item binary questionnaire assessing emotional...

September 23, 2026 • Dr. Mohammed Looti
Scales

Eysenck Personality Questionnaire

A comprehensive psychometric guide to the Eysenck Personality Questionnaire (EPQ), detailing its theoretical PEN model...

September 12, 2026 • Dr. Mohammed Looti
Theories

PEN Model of Personality – Hans Eysenck

A comprehensive academic analysis of Hans Eysenck's PEN model of personality, examining Psychoticism, Extraversion, and...

September 11, 2026 • Dr. Mohammed Looti
Scales

Big Five Inventory (BFI-44)

A comprehensive academic evaluation and psychometric review of the Big Five Inventory (BFI-44) developed by...

September 5, 2026 • Dr. Mohammed Looti