The phrase "demonstrable interest" is correct and usable in written English.
You can use it to refer to an apparent and easily observable interest in something or an interest that is well known to others. For example, "He has a demonstrable interest in music, which he has been studying since he was a little boy."
Do you have "excellent communication and analytical skills" and a "demonstrable interest in higher education"?
None of these books has been written by a real Shakespeare scholar, or by anyone who has any demonstrable interest in the plays themselves.
Student trainees are expected to have a demonstrable interest in global problems, familiarity with social science research, and a strong grasp of statistical analysis and quantitative methods.
"He's a guy who's had no demonstrable interest in historic preservation, who has the most important preservation job in New York City," said Anthony C. Wood, author of "Preserving New York: Winning the Right to Protect a City's Landmarks" (Routledge, 2008), and a party to the suit.
Lawyers agree that high performing students with a demonstrable interest in the law are significantly less likely to adopt a Kevin the Teenager approach to work experience than those who have landed the placement through their parents' friendship with one of the firm's partners.
Successful candidates will demonstrate a commitment to consensus building and dispute resolution in the public sector, a passion for working collaboratively, a knowledge of negotiation and alternative dispute resolution theory and practice, an ongoing, demonstrable interest in areas where negotiation theory and practice converge, as well as a strong sense of innovation and entrepreneurial spirit.
To withstand this challenge, the government must have a demonstrable legitimate interest in the nationwide cap.
Louise Mensch, the Conservative MP for Corby, said there was a "clear and demonstrable public interest" in the photographs.
In order to implement a quality contract, there must be a demonstrable public interest case and a consultation must then be held.
"There is an active reason to publish them [the photos] … There is a clear, demonstrable public interest: the royal family receives money from the civil list; Prince Harry in inviting people to his room [had] the expectation of privacy so there's questions of judgment and questions of security".
I would nevertheless argue that any definition of the practical that fails to take into account an individual's interests, demonstrable aptitude, or current state of personal development will tend to undermine the ability to get the most out of college.
