Factors Influencing the Inflation of Task Performance Ratings for Workers With Disabilities and Contextual Performance Ratings for Their Coworkers

Contrary to many myths regarding their potential performance, workers with disabilities generally receive performance ratings similar to their nondisabled coworkers. However, their ratings possibly may be inflated above their actual performance levels. In a laboratory experiment, we constrained the performance of a worker with a disability to an extremely low level and assessed the effects of helping behavior, presence and type of disability in the worker, and the perceived attributions of controllability of the disability on task performance ratings for the workers with disabilities and on contextual performance ratings for their coworkers. We found that the perception that a worker is not responsible for the onset of a disability and that having any disability, regardless of type, artificially inflates task performance ratings. We also found inflated contextual performance ratings for coworkers who work with persons who are perceived as being responsible for the onset of their own disability.