Scales

Child Rating Schedule

The Child Rating Schedule (Becker, 1960) is an influential 72-item multi-informant rating scale designed to...

September 28, 2026 • Dr. Mohammed Looti
Scales

Peterson Problem Checklist (PPC)

The Peterson Problem Checklist (PPC), developed by Donald R. Peterson in 1961, is an empirical...

September 28, 2026 • Dr. Mohammed Looti
Scales

Reactive-Proactive Aggression—FastTrack

A comprehensive psychometric guide to the Reactive-Proactive Aggression—FastTrack scale, detailing its theoretical foundation in social...

September 27, 2026 • Dr. Mohammed Looti
Scales

Seattle Personality Questionnaire

The Seattle Personality Questionnaire (SPQ) is a validated 45-item self-report psychometric instrument designed to assess...

September 25, 2026 • Dr. Mohammed Looti
Scales

Seattle Personality Questionnaire -Original

The Seattle Personality Questionnaire -Original (SPQ) is an established 44-item self-report assessment developed by Kusche,...

September 25, 2026 • Dr. Mohammed Looti