Scales

Enneagram of Personality Scales

A comprehensive academic overview and psychometric review of the Enneagram of Personality Scales, detailing its...

September 26, 2026 • Dr. Mohammed Looti
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Extraversion vs Introversion

A comprehensive academic review of the 20-item Extraversion vs Introversion Questionnaire, examining its theoretical basis...

September 26, 2026 • Dr. Mohammed Looti
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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
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Four Temperaments Test

A comprehensive academic analysis of the Four Temperaments Test (FTT), a 36-item semantic differential inventory...

September 26, 2026 • Dr. Mohammed Looti
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Guilford–Zimmerman Temperament Survey

A comprehensive psychometric review of the Guilford–Zimmerman Temperament Survey (GZTS), detailing its 10-factor structure, construct...

September 26, 2026 • Dr. Mohammed Looti
Scales

Holland Code (RIASEC) Test

The Holland Code (RIASEC) Test is an essential vocational interest inventory based on John L....

September 26, 2026 • Dr. Mohammed Looti
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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
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Machiavellianism Test (MACH-IV)

The Machiavellianism Test (MACH-IV), formulated by Richard Christie and Florence Geis, is the premier 20-item...

September 26, 2026 • Dr. Mohammed Looti
Scales

Nerdy Personality Attributes Scale (NAPS)

A comprehensive psychometric analysis of the Nerdy Personality Attributes Scale (NAPS), detailing its empirical development,...

September 25, 2026 • Dr. Mohammed Looti