In 1981, Dorothy Leonard-Barton introduced a scale designed to assess an individual’s willingness to pursue simplicity, that is, their ability to best manage their daily activities by reducing consumption and dependence. This scale is based on five dimensions that reflect the simplicity of a lifestyle: material simplicity, self-determination, ecological awareness, human scale, and personal growth. It consists of 14 statements covering these different values. Subsequently, a revised version was presented in 1986 by Deborah Cowles and Lawrence A. Crosby, now including 18 statements.