The use of covariates is commonly believed to reduce the unexplained error variance and the standard error for the comparison of treatment means, but the reduction in the standard error is neither guaranteed nor uniform over different sample sizes. The covariate mean differences between the treatment...
The second part of the evaluation which aimed at comparing the differences of the means (initial-final) between the two groups revealed that: 1) the chin was in a more forward position in the edgewise group, 2) there was a larger increase in the length of the lower jaw in the same ...
Some Multiple Range Tests for Variances Often times, the experimenter is interested in making inferences about treatment variances instead of, or in addition to, inferences about means. Three mul... Levy,J K. - 《Educational & Psychological Measurement》 被引量: 22发表: 1975年 ...
This patient had a marked increase in fibrosis between biopsies, with a CPA of 6.74 to 32.02. Another patient, who already had bridging fibrosis at the time of her pre-treatment biopsy, developed cholangiocarcinoma after DAA. Even though the overall inflammatory activity in the post-treatment ...
Continuous variables are expressed as means ± standard deviations; categorical variables are expressed as numbers and percentages. The above-listed clinical parameters were compared between non-CB patients and CB patients, and between patients with mild CB versus severe CB. Differences in the ...
Besides comparing the results from differential expression analysis in form of it p values and log2 fold changes, we also compared directly the similarity between original gene expression data and that from the artificial replicates. Cluster trees, separately for treatment and control data, is provide...
Following this retrieval, a value of -1 (minus one) in the cd_ind variable means that the variable cust_discnt has a null value, whereas a value of 0 (zero) means that cust_discnt has a normal integer value. Now the l 清楚地最便携式的句法是使用显示主题词,并且我们将做那在什么跟随。
Point and confidence interval estimates for level and slope changes, standard errors, p-values and estimates of autocorrelation were compared between methods. Results From the 200 ITS studies, including 230 time series, 190 datasets were obtained. We found that the choice of statistical method can ...
Differences in means were evaluated by one-way analysis of variance (ANOVA) with Tukey’s post hoc test for multiple comparisons. Student’s t test was applied to evaluate the difference between two groups. A normality test was applied first for continuous variables before any further comparison ...
Table 6 compares the sensitivity, specificity, positive predictive value, negative predictive value, and the area under the curve for different screening tools with GLIM-DCM between elderly and non-elderly stroke survivors. It was found that the MRST-H and MUST had good sensitivity and specificity...