The phrase "differing theories" is correct and can be used in written English.
It is typically used to refer to multiple conflicting or varying explanations or ideas about a particular topic. Example: "The academic community is still divided, with differing theories on the origins of the universe."
Design differences across PHIT Partnerships reflect differing theories of change, particularly regarding what information is needed, who will use the information to affect change, and how this change is expected to manifest.
The Helmand governor's office offered differing theories as well.
A similarly eclectic approach to high moral theory stresses the convergence of differing theories at the level of action guiding principles.
"We did have differing theories about the second serve: I was of a mind to just get it in, but Todd would give it a little nudge that sometimes led to double faults".
The debate turns on ideas about civil liberties that are balanced a little differently in New York than in most of the country, and on widely differing theories about why millions of people who should be tested are not.
He hoped his report would draw a line once and for all under the differing theories surrounding her death.
Some bioethicists maintained that a global bioethics could be founded on the four-principles approach, in view of its apparent compatibility with widely differing ethical theories and worldviews.
This is challenging for the evaluation of ERS which are typically heterogeneous and driven by differing latent programme theories, which can only realistically be compared with other similarly conceived schemes [ 71].
"Privacy policies differ in theory and practice.
The effect of pull and push factors differs as theory predicts.
Previous research on TDR focuses on program performance, and provides little insight into why TDR programs might differ in theory and practice.
