Thomas F. Cash: A multidimensional innovator in the measurement of body image; Some lessons learned and some lessons for the future of the field.

Accurate measurement of constructs under investigation is an often-overlooked ingredient of research. However, sound use of strategies to ensure valid and reliable assessment is the building block for any research design, data analysis, and outcome interpretation. In this paper, we note how Thomas F. Cash has pioneered and steered this process in the field of body image for over 30 years-in fact, in the inaugural issue of Body Image, the first article after the editorial introduction focused on measurement (see Thompson, 2004). In the current paper, we detail some of the seminal measures developed by Thomas Cash as well as update the common errors in the (mis)measurement of body image noted in Thompson (2004). The future of body image assessment is bright if we focus on the illumination of past work by Thomas Cash.