i havent seen any research on that,but it may be there,But obviously it will be YES without reseearch.however research will further reveal the factors that may enhance or discourage motivation to earn college credit
"Dual credit applies when high school students take college courses for which they receive both high school and college credit," Campbell said. "It's an important distinction to understand that there aren't dual-credit courses, there are dual-credit students. People think the courses are different, but they aren't. It's the same syllabus, textbook, rigor and grading component for the high school student as it is for the traditional-age college student. Dual-credit students have to meet the same qualifications as traditional-age college students to be in a class."
http://www.chron.com/news/article/Students-earn-academic-credit-for-San-Jacinto-5582697.php
