The phrase "a persistent observation in" is correct and usable in written English.
It can be used when discussing a recurring or consistent finding or remark within a specific context or field of study.
Example: "There is a persistent observation in the research that suggests a correlation between sleep quality and academic performance."
Alternatives: "a recurring observation in" or "a consistent finding in".
This is a persistent observation in PVD-TiN thin films, commonly attributed to the fact that growth defects cause lattice distortion [27].
These analyses indicated that global DNA hypomethylation remained a persistent observation in lung tissue from patients diagnosed with NSCLC.
Although demyelination is the pathognomonic lesion in EAN and GBS, axonal injury has been a persistent observation in both the animal model and human disease [ 7, 10, 15, 29, 40, 64, 202].
Without a persistent observation capability, keeping a watch for incoming threats over a large area requires keeping several aircraft in the air, and also having a lot more aircraft on the ground for maintenance and backup.
The video recordings allowed for persistent observation in addition to data-and researcher triangulation.
A remarkable finding of this study was the persistent observation of a conspicuous CD4+CD25−FoxP3+ population in HIV-TB patients that was not observed in the other groups.
Credibility was established through persistent observation, prolonged engagement in the field, and overall development of the project; dependability was established through an audit trail using fieldnotes, memo writing, and reflexive notes; and confirmability through multiple debriefings among the research team as they reviewed the analysis, interpretation, and representation of the data.
We used widely accepted techniques to ensure rigour, including constant comparison, "negative" case analysis, participant checks, persistent observation, and prolonged engagement in the field [ 3, 10].
Regarding credibility - how well the findings had captured the reality being explored - since the first author was living in the area where the research was going on, credibility was enhanced by prolonged engagement in the area and persistent observation.
And that led to a persistent weakness in the economy.
