Emejidio has a PhD in Education from the Polytechnic University of the Philippines. He also has a master’s degree in Teaching, English Language Arts from the Philippine Normal University. As for his bachelor degree, he majored in English and graduated from the Polytechnic University of the Philippines.

His affiliations and experiences include:
Polytechnic University of the Philippines, Associate Professor
Polytechnic University of the Philippines, Research Evaluation and Monitoring Center, Chief
Polytechnic University of the Philippines, Alumni Relations Officer
Polytechnic University of the Philippines, University Instructor III
Onesimo Foundation, Instructional Manager

His research interests include: language research, language education research and education research.