"grounded in theory" is correct and can be used in written English.
This phrase is generally used to refer to an idea or plan that has been developed based on a set of theories or principles. For example, "This policy proposal is grounded in economic theories about incentives and disincentives."
At a news conference, Dr. Garcia said the concept of an event horizon at black holes was "well grounded in theory but observationally very difficult to establish".
When I met Sarah, she was wearing red lipstick, black boots, and tortoiseshell glasses; she is at once hipper than Green — she's grounded in theory and cutting-edge art — and steadier, with a quieter, more skeptical sense of humor.
The disagreement between experts in Jack Hitt's article about how to use linguistics to solve crimes illustrates the fact that, as is often the case in the other forensic disciplines, linguistics does not involve a set of common, repeatable, precise, and peer-reviewed methods that are grounded in theory and substantiated by a body of evidence ("Words on Trial," July 23rd).
Secondary analyses included journal type, author type, article type, whether the literature was grounded in theory, and user groups considered.
In particular, recent reviews have criticized many of the studies conducted for being poorly designed, narrow in focus, and not grounded in theory.
The notion of stars consuming their inner planets as they balloon during old age is firmly grounded in theory, but now scientists may have in hand the first evidence for such cannibalism.
First, both are grounded in theories of qi, yin-yang and wuxing and microcosm-macrocosm analogies based on them.
However, participants considered students' cognitive, affective, and metacognitive thinking, and each of these is grounded in theories of how people learn (Vermunt 1996).
The Community of Inquiry (COI) framework is grounded in theories of learning and teaching and is relevant for use in developing online courses for APN students.
Another potential limitation of our study is that the gaps we identified in many plans were grounded in theories about the ways to enhance the quality and outcomes of clinical care [10], [18] or of public health preparedness planning [6].
Well-known PS models have been grounded in theories focusing on social justice, equitable allocation, efficiency and burden of disease.
