According to Amabile and Hennessey, which of the following is NOT identified as an environmental constraint on motivation?

The identified environmental constraints on motivation, according to Amabile and Hennessey, involve factors that can influence an individual's drive to engage in creative tasks or activities. The correct answer, which is internal motivation, stands out because it is a personal, intrinsic factor rather than an environmental constraint.

Internal motivation refers to the innate desire to engage in activity for its own sake, driven by personal satisfaction or interest. In contrast, expected rewards, competition, and time limits are external factors that can impact an individual's motivation by altering their perception of the task or the environment in which they are working. For instance, expected rewards can either enhance or diminish motivation based on how they align with an individual’s intrinsic desires. Similarly, competition can create a pressure that influences the level of motivation to succeed, and time limits can impose a stress factor that affects one's willingness or ability to engage in a task spontaneously or creatively.

Overall, internal motivation functions independently of environmental constraints, focusing instead on the individual's internal state and personal drives, which distinguishes it from the other options presented.