1. Determine if you are required to file a tax return. You are required to file a federal income tax return if you are a citizen or resident of the United States or a resident of Puerto Rico. Your marital status, age, filing method, and income all affect whether or not you are required to file taxes.
proficiency testing. proficiency testing. a program in which specimens of quality control material are periodically sent to members of a group of laboratories for analysis, with each laboratory's results compared with those of its peers. See also: proficiency samples.
acquired proficiency in his profession so the teacher is also governed by certain principles which help him. acquire proficiency in teaching. Personalized system of instruction (PSI) is the one of the recent innovation. which has been successfully introduced in higher education to individualize instruction.