p-value

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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.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
(11) The marginal significance level of the RTC variable in this regression is 42.03%, indicating that right-to-carry has no significant effect on the reported campus crime rate with any reasonable test size.
Turning first to the main effect results, as shown in Table 2, intimidation usage was not significantly related to job satisfaction but was related to burnout ([beta] = 0.33, p < 0.01) and job strain ([beta] = 0.17, p < 0.10, a marginal significance level).
Each entry in each figure is a single marginal significance level for excluding all lags of the financial variable in question from an ARDL model for the relevant output variable.
The likelihood of finding [B.sup.P] [is greater than] [B.sup.A] in twenty or more of the twenty-eight months, under the assumption that published levels are not informative, is called the "marginal significance level" associated with the number 20.(4) If the marginal significance level of some result is smaller than 5 percent, it is consistent with standard practice in the literature to conclude that the published numbers are better than arbitrary numbers at predicting trend interruptions.
The test statistic of 1.9836 indicates a marginal significance level of 0.3709.
The number in parenthesis is the marginal significance level.
Hence, we reject [H.sub.0]: [delta] = 0 (BPT) versus [H.sub.1]: [delta] [greater than] 0 (MPT) with a marginal significance level of about 8.5% (in a one-tailed test).
The marginal significance level for the set of dummy variables was 1.67%.
Figures in square brackets are the marginal significance levels generated by the bootstrapping method described in the text.
In that table, the dependent variables are placed at the head of the column and the marginal significance levels of the F-tests for the explanatory variables are observed by reading down the column.
Marginal significance levels are given by p-values in the accompanying tables.
Table 2 reports the marginal significance levels of Granger causality F-tests for six different measures of money: old and revised monetary base; old and revised total reserves; old and revised non-borrowed reserves.