The phrase "a more accurate source" is correct and usable in written English.
You can use it when comparing the reliability or precision of different sources of information.
Example: "For this research, I found a more accurate source that provides detailed statistics on the topic."
Alternatives: "a more reliable source" or "a more precise source".
We use the Quarterly Census of Employment and Wages because it is a more accurate source for employment counts than the Current Population Survey; as a result our estimated number of union workers in California is higher than in Hirsch and McPherson (2018).
But Bohannan says that microbial succession could prove to be a "more accurate source of forensic information than insect succession".
Risk effect estimates obtained for selected birth defects in relation to maternal occupations as reported on the birth certificate supported the prediction of weaker associations than those obtained from a more accurate source such as by questionnaire.
Dental cementum is a more accurate source for estimating longevity in mammals, due to its usual absence of resorption [ 43] and more complete growth record, as shown by studies on growth marks in living species, including deer of known age [ 43, 44].
Use this valuable resource to get a more accurate source for particular information about an aspect of the Census.
Russell Hobby, general secretary of NAHT, said: "Teacher assessment provides a richer, more accurate source of information to parents than the current crude and narrow tests and the equally unhelpful league tables they feed.
Alternatively, people may see the feedback as a more objective and more accurate source of information about their stress level than their own experience.
These findings suggest that patient survey may be the more accurate source for medications used, however this source is not without its potential biases.
As can be observed in Figure 4, for the shallow sources, the BSCR close to actual value can get more accurate source localization results than other ratios.
These individual participant localizations were used to provide more accurate source reconstructions than those that localizing the grand averaged data would have produced.
Transrectal ultrasound guidance facilitated a closed percutaneous transperineal approach to the prostate for source placement and the simultaneous development of sophisticated radiation planning software allowed much more accurate source placement and dosimetry.
