p-value

(redirected from Pvalue)

p-value

The probability, expressed as a number, that a particular effect or association is real or that a given statement or hypothesis is true. If a trial has n possible outcomes and m of these are the desired outcome, then the probability (p) of obtaining the desired outcome is m /n . If all the outcomes are as desired then m = n and p = 1. If none are as desired p = 0. So p is a measure that will alwys range from 0 to 1.

p-value,

n in statistics, the probability that a random variable will be found to have a value equal to or greater than the observed value by chance alone. This value provides an objective basis from which to assess the relative change in the data.
References in periodicals archive ?
3 (a) H/A--height-for- age; (b) BMI/A: body mass index-for- age Table 2: Association of anemia (odds ratio and 95% confidence interval) with maternal and socioeconomic variables; Children aged 5-9 years, Cape Verde--2009 Socioeconomic variables Prevalence of anemia % OR (a) 95%CI (b) pvalue Household conditions 0.
Thus, even when models are a good fit to the data, a large sample size can result in a large value and a significant pvalue, indicating 'rejection' of the hypothesis that the model has a good fit to the data (Brown, 2006).
Table 1 Patient characteristics Age, Fiscal year MV *, Total Male, median n (%) MV, hours n (%) (IQR) 2002-2003 185 (36) 25,375 105 (57) 56 (44-64) 2003-2004 253 (39) 30,893 132 (52) 59 (46-76) 2004-2005 259 (37) 27,072 151 (58) 67 (48-76) 2005-2006 233 (32) 18,116 128 (55) 70 (55-79) 2006-2007 282 (36) 22,205 152 (54) 69 (55-79) 2007-2008 284 (36) 20,205 163 (58) 64 (46-68) 2008-2009 291 (38) 18,475 156 (54) 57 (44-66) 2009-2010 315 (39) 19,596 185 (59) 60 (46-73) Pvalue ([double 0.
If the R-square is small and the Pvalue is large, the relative ratio is white noise.
As it is indicated in the P-value column, the Pvalue in both models is more than %5 (significance coefficient) and consequently H0 hypothesis is accepted in 0.
Summary of Cohort Differences QUESTION MEAN SCORE GROUP 1 MEAN SCORE GROUP 2 PVALUE Question 1 2.
The luminance of each square target was extracted from the HDR picture using the Radiance pvalue program (pvalue - o - h - H filename.
0% Total for All 655 100% 430 100% 397 100% Articles Category ZValue pValue M/W W/B M/B M/W W/B M/B Phys.