13. A system for managing the subjective efficacy of a hearing prosthesis, comprising: a processor; and an input/output device configured to receive input indicative of the recipient's ability to hear with the hearing prosthesis, wherein the processor is configured to develop performance data based on the received input indicative of the recipient's ability to hear with the hearing prosthesis, the processor is configured to develop hypothetical efficacy data indicative of a subjective hypothetical efficacy of the hearing prosthesis based on the developed performance data, and the processor is configured to develop hypothetical efficacy data indicative of the subjective hypothetical efficacy of the hearing prosthesis based on hypothetical temporal data.
13. A system for managing the subjective efficacy of a hearing prosthesis, comprising: a processor; and an input/output device configured to receive input indicative of the recipient's ability to hear with the hearing prosthesis, wherein the processor is configured to develop performance data based on the received input indicative of the recipient's ability to hear with the hearing prosthesis, the processor is configured to develop hypothetical efficacy data indicative of a subjective hypothetical efficacy of the hearing prosthesis based on the developed performance data, and the processor is configured to develop hypothetical efficacy data indicative of the subjective hypothetical efficacy of the hearing prosthesis based on hypothetical temporal data. 17. The system of claim 13 , wherein: the system is configured to provide the recipient with a plurality of temporally spaced aural training tasks, the aural training tasks evoking hearing percepts evoked by the hearing prosthesis; the system is configured to link data pertaining to respective temporally spaced aural training tasks of the plurality of temporally spaced aural training tasks to respective aural tests of the plurality of aural tests provided to the recipient; and the processor is configured to develop the performance data based on the linked data.