"demonstrable results" is correct and usable in written English.
You can use it to describe tangible evidence or proof of success. For example, "Our investment in new technologies has yielded demonstrable results in terms of increased efficiency and improved customer satisfaction."
Over the last decade, District 2's emphasis on teacher development has had demonstrable results.
Rapidly demonstrable results become the way to ensure that valuable work continues.
The practice has been creeping into basketball front offices for several years, although with far less attention or demonstrable results.
The second level of the health care debate that Mr. Callahan sketched was "ideological": government versus market as a matter of principle, not demonstrable results.
But according to the state evaluators, the pleasant atmosphere and high levels of parent and student satisfaction are no substitute for demonstrable results.
Chandler, 29, has long been a defensive force inside, bringing grit and hustle to every team he joins, with demonstrable results.
Though the shuffling is being done in the name of improvement, its only demonstrable result is consolidation: pushing together all the kids who haven't fled for private, charter or magnet schools and warehousing them in a more efficient, cost-effective manner.
All other types of civil cases and jury configurations resulted in no demonstrable effect on future voting.
"Physical activity programmes in schools can have positive influences on cognitive performance, with demonstrable positive results in academic attainment, concentration, memory and classroom behaviour".
I'm typically not an advocate for encouraging nonprofits to operate "more like a business," but I think we could benefit from a sideways glance at organizations like Google, IDEO, and Zappos that have put culture at the center of their business models, with demonstrable positive results for themselves and their customers.
Immunoblotting of the lysates from these cells (ΔSP-GLP-1R-GFP) revealed that the protein bands of this receptor were demonstrable (similar results were obtained with the construct ΔSP-GLP-1R-HA).
