If you are a student, check your university library’s database. Many psychology departments keep copies of validated scales in their internal repositories.
The is a comprehensive tool used to measure how people feel while performing specific tasks. Developed by Gerald Matthews and colleagues in the late 1990s, it focuses on the idea that stress isn't just one feeling, but a mix of different emotional and mental states. Core Concepts and Structure dundee stress state questionnaire pdf
Higher scores indicate greater alertness and energy. If you are a student, check your university
Focuses on energy, concentration, and motivation. It includes primary scales like Energetic Arousal and Intrinsic Motivation. If you are a student