2、在 SPSS中,将两个总体均值近比较称为 Compare Means,可选择 Analyze Compare Means 来实现。 Compare Means 集中了几个用于计量资料均值间比较的过程。具体有:Means过程:对准备比较的各组计算描述指标,进行预分析,也可直接比较。One-Samples T Test 过程:进行样本均值与已知总体均值的比较。 Independent-Samples ...
To determine whether the difference between two means is statistically significant, analysts often compare the confidence intervals for those groups. If those intervals overlap, they conclude that the difference between groups is not statistically significant. If there is no overlap, the difference is s...
Comparison Group: COMPARE tests for pay disparities between two groups—Focal and Reference (e.g., men/women). The comparison group variable identifies the membership of each data record into one of two groups, therefore, it can only be a Binary datatype. As part of data preparation, the ...
SPSS version 26 (IBM Corp, Armonk, NY, USA) was used for data analysis. Continuous data are expressed as means±standard deviation, and skewed data are presented as median (interquartile range) or n (%). The difference in means between the 2 groups was analyzed by the unpairedttest. Fish...
The two groups did not differ in gender distribution (Chi-squared p-value = 0.800). The mean number of teeth extracted in the bilateral group was slightly higher than that in the unilateral group, but not significantly. (t-test: p-value = 0.134; Mann-Whitney test: p-value = 0.117). ...
We also compared the duration of surgery, enophthalmos correction, restoration of orbital volumes, and improvement of clinical symptoms in both groups systemically. Quantitative data were presented as mean 卤 SD. Significance was determined by the two-sample t-test using SPSS Version 19.0 A p < ...
groups, 98 subjects per group were required, with 196 in total. This power calculation was based on an effect size of 0.233, the standard deviation between means was 0.14 with a standard deviation of 0.60. After accounting for an anticipated 20% subject attrition rate, the total sample size ...
It is a randomized, double-blind, two-cell clinical trial at Dhaka Hospital of icddr,b. A total of 312 male children aged 6–36 months old with acute non-bloody watery diarrhea are included in this study. Intervention arm participants get amino acid-based ORS (VS002A) and the control ar...
Cross tabs were performed to evaluate the ability of the SGA score as a predictor of PEW, and the group classified as VGS C had a specificity to diagnose PEW of 100% and a sensitivity of 30%, but when we combined the groups classified as B/C, the sensitivity increased to 88%, althoug...
(sEMG).Methods:This retrospective cross-sectional study comprised a total of 78 patients aged between 50 and 85 years with primary osteoarthritis. Patients were divided into a mini-MV (n = 38) group and a mini-MPP (n = 40) group according to the surgical approach.Results:The two groups ...