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	Skala Obciążenia Poznawczego (CLS)	Kwestionariusz User Experience (UEQ)
Dziedzina	Czynniki ludzkie	Czynniki ludzkie
Rodzina	Process / pipeline	Process / pipeline
Rok powstania	1992	2008
Twórca	Fred Paas	Bettina Laugwitz, Theo Held, Martin Schrepp
Typ	Self-report	Self-report
Źródło pierwotne	Paas, F. G. W. C. (1992). Training strategies for attaining transfer of problem-solving skill in statistics: A cognitive-load approach. Journal of Educational Psychology, 84(4), 429–434.	Laugwitz, B., Held, T., & Schrepp, M. (2008). Construction and evaluation of a user experience questionnaire. In A. Holzinger (Ed.), HCI and Usability for Education and Work (LNCS 5298, pp. 63-76). Springer.
Inne nazwy	CLS, Paas Scale	UEQ, UEQ-S
Pokrewne	4	4
Podsumowanie	The Cognitive Load Scale (CLS), developed by Fred Paas in 1992 and refined by Paas and colleagues in subsequent years, is a brief, single-item or multi-item self-report instrument for assessing the cognitive load (mental effort) imposed by a learning or task environment. Originating in cognitive load theory research, the CLS has become a fundamental measurement tool in educational psychology, instructional design, and human factors, used to evaluate how instructional materials, interface designs, or training methods affect learner or operator mental burden.	The User Experience Questionnaire (UEQ), developed by Laugwitz, Held, and Schrepp in 2008, is a practical instrument for assessing user experience of interactive products and systems. It measures six dimensions of user experience using semantic differential item pairs, balancing comprehensive coverage with brevity (26 items in the full version, 8 items in the short form UEQ-S). The UEQ has become widely adopted in software engineering, human-computer interaction, and usability research to evaluate websites, applications, and digital interfaces.