The GCOS is available in two forms. The original scale is well validated and has been widely used consists of 12 vignettes and 36 items. Each vignette describes a typical social or achievement oriented situation (e.g., applying for a job or interacting with a friend) and is followed by three types of responses–an autonomous, a controlled, and an impersonal type. A description of the 12-vignette version of the scale construction appears in Deci and Ryan (1985) along with data that support the instrument’s reliability and validity. Respondents indicate, on 7-point Likert-type scales, the extent to which each response is typical for them. Higher scores indicate higher amounts of the particular orientation represented by the response.