ECOLOGICAL TASK-ANALYSIS - UTILIZING INTRINSIC MEASURES IN RESEARCH AND PRACTICE

Ecological task analysis (ETA) originally was proposed by Davis and Bu rton in 1991 to facilitate the linking between basic and applied resea rch and theory and application in the area of adapted physical educati on. There, four steps in an applied model were laid out based upon the ory and research, In the present paper, additional empirical and theor etical work, including social referencing studies, which supports the key concepts of ETA are included, targeting a broader audience of pers ons in a variety of movement therapy and physical activity instruction professions. Following this expanded overview, the concept of using i ntrinsic measures to assess movement performance is addressed in detai l, including applications of dimensional analysis, allometric procedur es, and Froude numbers. These performer-scaled measures are offered as an important way to establish direct links between task goals and the constraints of the performer and the environment, one of the four gui ding concepts of ecological task analysis.