The PhD or doctoral of secondary education is usually a four year long degree, but depends upon the institute you plan to enroll in. The program consists of two years of academic studies followed by two years of comprehensive research work. The core curriculum includes courses in curriculum analysis and development, teaching methods, developmental psychology and special education. Students then take courses in a specialization of their choice such as science, math or the fine arts. Before they are awarded the doctorate of secondary education, they must also complete an independent research project and submit the findings to their professors.