Final answer:
The variable in the job performance equation P = M A E that represents the resources and information needed for effective job performance is E (Environment).
Step-by-step explanation:
In the job performance equation P = M A E, the variable that reflects the degree to which the employee has the information and resources she needs in order to do the job well is E (Environment). This includes access to necessary resources, supportive workplace culture, and managerial structure that facilitates efficient work. Unlike Motivation or Ability, the Environment is external to the employee and encompasses the conditions that can either enable or hinder effective job performance.