My DD and most of her friends co-op or intern by choice therefore they usually graduate in 4.5 to 5 years. GT is a great engineering school and the graduation rate is a reflection of that- students have options like research, VIP’s, internships etc and they want to take advantage of those opportunities, not because they cannot get their classes to graduate or a reflection of the student body. My DD asked if she could graduate in 5 years because she wanted to do some semester-long internships and take just 4 classes while she did some cool research and engineering opportunities offered to her every semester. Since those things provide the hands-on engineering that she loves and makes her very marketable for jobs, we were okay with her taking longer.