Scales

Academic Self-Concept

The Academic Self-Concept scale is an 8-item psychometric instrument grounded in the Marsh-Shavelson model, measuring...

September 25, 2026 • Dr. Mohammed Looti
Scales

Strengths and Difficulties Questionnaire (SDQ)

The Strengths and Difficulties Questionnaire (SDQ) is a premier 25-item multi-informant behavioral screening instrument developed...

September 16, 2026 • Dr. Mohammed Looti
Scales

Shoulder Disability Questionnaire

A comprehensive psychometric review and clinical guide for the Shoulder Disability Questionnaire (SDQ), a 16-item...

September 11, 2026 • Dr. Mohammed Looti