Quartile

(redirected from Quartiles)
Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.
Related to Quartiles: percentiles

Quartile

In statistics, the set of values encompassing one-quarter of points in a data set.
Mentioned in ?
References in periodicals archive ?
The weighted kappa (with squared [quadratic] weights) between round 2 and round 4 quartiles was only 0.
The clinical and demographic characteristics were similar across the quartiles of osmolality-adjusted urinary BPA concentration (see Supplemental Material, Table S1).
If we see the overall movement between 1989-2006, we find that three quartiles viz.
The resulting multivariable RRs and 95% CIs of hypertension in the highest quartile were 1.
Also, while the difference between the price in auctions where the seller has 1-31 reports (Quartile 1) and the price in auctions where the seller has 32-205 reports (Quartile 2) is statistically significant at the 10% level, the price differences between auctions in any other pair of quartiles are not statistically significant, suggesting that returns to positive reports are in fact severely decreasing.
The model found that those in the top three quartiles of idea density were seven times more likely to have asymptomatic Alzheimer's at the time of their death than those in the lowest quartile.
Body fat percentage by skinfold thickness was significantly associated with RCC in men, with those in the highest quartile having a risk of RCC 2.
To determine the additional daily costs associated with graft failure, we calculated the slope of the cost curves for income quartiles 1, 2, and 3 (these are the cohorts that would have experienced improved graft survival rates from lifetime coverage) before and after graft failure.
Additionally, transition matrices highlight the movements between quartiles and halves for two non-overlapping one-, three-, and five-year time periods.
Half our sample came from the top quartile of their high school graduating class.
For the last few years, if you divide the supplier community into four quartiles, their financial performance falls into three categories:
Interquartile range (IQR) is the difference between the lower and upper quartiles.