"the extant research" is correct and usable in written English.
You can use it when referring to research that exists at a given time. For example, "The extant research suggests that there is a strong correlation between sleep and academic performance."
In doing so, systematically analysing and synthesizing the extant research published on BD and BDA area.
The extant research on Salvia use relies on non-probability samples and studies of college students.
This paper surveys the extant research in the field of ocean container transport.
First, the extant research has focused on DA that is based on pre- and post-test evaluation.
To describe and synthesize the extant research on women's experiences with preeclampsia into the postpartum period, when birth is necessary to save the mother's or infant's life.
The proposed method is validated by comparison against the extant research; the comparison also suggests that the roof profile plays a crucial role in cavity stability.
We address the gap in extant research by asking the question how transnational couples' culturally situated understandings of intimacy shape their relationships with their Chinese parents or in-laws.
Part II of the SOS-SPC report addresses the state of extant research and identifies critical research priorities pertaining to the following questions: 1) How do we assess spirituality?
Although the results of extant research on parental perceptions of the child born subsequent to perinatal loss are mixed, there is some indication that maternal perceptions of the child may differ from those of women without a history of perinatal loss.
Moreover, the research is also limited by the judgmental sampling of one case study due to the unavailability of extant research in this new field of CSR, so, more case studies need to be done, empirical studies conducted to validate this research.
As the intended contribution is to explore the role of CSR practices in the formation of consumer attitudes and behavioral intentions in a developing country, in contrast to the abundance of extant research on developed countries, we chose to focus on Bolivia as the least developed among the developing countries in the Americas (IMF 2017).
