The phrase "a correlation has been identified" is correct and usable in written English.
It can be used in contexts where research or analysis has revealed a relationship between two or more variables.
Example: "In the study, a correlation has been identified between increased physical activity and improved mental health outcomes."
Alternatives: "a relationship has been established" or "a link has been found".
A positive correlation has been identified between mothers' TAS-20 Total score and the children's SAFA-A Total Score (p=0.026).
Interestingly, a similar correlation has been identified in mammals, but in that case, Myc was shown to directly regulate SRSF1 transcription (Das et al. 2012).
In addition, a temporal correlation has been identified between NK cell numbers or activity and periods of disease progression or remission in MS and SLE, suggesting that NK cells may play an immunoregulatory role in disease pathology [ 38- 43].
A similar correlation has been identified between perceptual metacognitive accuracy and BOLD signal in lateral anterior PFC (Yokoyama et al., 2010; Fleming et al., 2012) and resting-state connectivity between lateral anterior PFC and other brain regions (Baird et al., 2013).
This is because even if no correlation has been identified between a stimulus and reward, such a correlation may be identified in the future, or by downstream neurons.
However, it should be underlined here that, even though some studies [31] restrict HIMT definition to glass samples that show a positive correlation between iron and alumina, titania and manganese, no correlation has been identified within the HIMT assemblage of Classe.
The approach is particularly useful for the analysis of disordered systems such as ion conducting glasses, where particularly strong structure conductivity correlation has been identified.
No such correlation has been identified in Phaseolus.
However, as yet no correlation has been identified between these mutations and mRNA and/or protein expression in tumours.
On the contrary, no correlation has been identified between TCTP expression and the age of the patients (P = 0.99)– 4(f)).
