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Spss v19

Manufactured by IBM
Sourced in United States, Japan, Germany, China, United Kingdom

SPSS v19.0 is a statistical software package developed by IBM. It provides a range of data analysis and management capabilities, including data manipulation, statistical modeling, and visualization tools. The software is designed to assist users in analyzing and interpreting data, but a detailed description of its core function is not available while maintaining an unbiased and factual approach.

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1 488 protocols using spss v19

1

Statistical Analysis of Plant Responses

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Average shoot fresh weights and % bacterial bioluminescence were based on at least 15 individual plants per treatment and were analyzed for statistical differences by Student’s t-tests (α = 0.05; SPSS, v19.0). H. arabidopsidis class distributions were based on 50–100 leaves and differences between treatments were analyzed for statistical significance by χ2 contingency tests using SPSS, v19.0. Average fold-change values of gene expression and H3K9ac levels were based on three biological replicates per treatment and statistical differences were determined by Student’s t-tests (α = 0.05; SPSS, v19.0). Each experiment was repeated twice from the onset.
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2

Evaluating Human and Mice Cognitive Function

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All data were tested for normality by the Kolmogorov−Smirnov test. When data were normally distributed, the statistical significance of differences was assessed with the unpaired t test and one- or two-way ANOVA, analyzed by Tukey post hoc. When data were not normally distributed, the statistical significance of differences was judged on the basis of p values with the Mann–Whitney U test and analyzed by IBM SPSS v19.0 (SPSS Inc., Chicago, IL, USA).
Human serum biochemical index was assessed using Student’s unpaired t test. Gender of participants was assessed using the chi-squared test.
Correlations between urine formaldehyde levels and MMSE or WISC scores were assessed using Pearson correlation coefficient, both without adjustment, then accounting for sex and age. These data were analyzed by IBM SPSS v19.0.
Mice serum biochemical index was assessed using Student’s unpaired t test. The spatial memory behaviors in MWM of mice were analyzed by Tukey post hoc with repeated measures ANOVA.
The changes in the response amplitudes of LTP were analyzed using mixed design ANOVAs.
Statistical significance was set to p < 0.05. Analyses were performed using the GraphPad Prism 6 software (GraphPad PRISM software, version 6.01; GraphPad Software, Inc, La Jolla, CA).
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3

Statistical Analysis of RT-qPCR and Metabolomics

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Raw data from RT‐qPCR experiments were analysed by LightCycler® 480 software (v 1.5.1.62). Tukey test (p < 0.05 and <0.01, as reported in each figure) was used for multiple pairwise comparisons while pairwise comparison was made by Students' test (p < 0.05 and <0.01, as reported in each figure). The software IBM SPSS v19 was used for statistical analysis. Values of metabolites referring to 2 years were subjected to the analysis of variance (ANOVA) before statistical analysis. To analyse the relation between data from gene expression and metabolite content versus time in PFR/FR and PSR/SR, a regression analysis was carried out. The statistic R2 (calculated by means of the IBM SPSS v19 software) was used to measure the goodness‐of‐fit for linear regression models, evaluating the strength of the relationship between our model (time) and the dependent variable (gene expression and metabolite content). Values >0.5 and <−0.5 indicate a positive and negative linear relation between independent (TPs) and dependent variables (gene expression level and metabolite content) at p < 0.01.
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4

Entomopathogenic Fungus Virulence Characterization

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Mosquito survival was analysed using Kaplan-Meier survival analysis in SPSS (v.19) with significant differences between different isolates estimated using a Log Rank Test. Differences between the control and the infected mosquitoes were examined using a Cox Regression analysis in SPSS. Hazard ratios (HR; the daily chance of death) in comparison with the isolate IMI391510 were calculated. One-way ANOVA was conducted in R (2.12.2) to detect differences in conidia size, sporulation and linear growth rate, with the sporulation data being Log transformed before analysis. A General Lineal Model was used to analyse the correlation between phenotypic characteristics of isolates and their virulence on mosquitoes using R (2.12.2). To further check for any correlation among the phenotypic characteristics themselves, a Pearson’s Correlation analysis was done. Mosquito survival exposed to the same fungal isolates at different time points were analysed using Kaplan-Meier survival analysis in SPSS (v.19) and significant differences were estimated using a Log Rank Test.
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5

Comparative Study of Dry Eye Treatments

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Sample size calculations were based on showing differences of four main parameters (OSS, NIKBUT, lid margin, and meibum quality) through multiple comparisons of two treatments vs a control-simulation. A priori power analysis showed that the maximum sample size required for 80% power of detecting those differences as significant at the two-side 5% level was 21 subjects using the PASS 2008 calculation software. We enrolled 27 eyes and found the power of our study was 90.3%. All statistical analyses were performed using SPSS V.19.0 software. A linear mixed model with Bonferroni post hoc analysis was used to evaluate repeated measurements of continuous variables, including OSS, NIKBUT, and Schirmer I test score. Generalized linear mixed model analysis with Bonferroni post hoc analysis was used for repeated measurements of discrete variables, including the FL score, lid margin findings, and MGs findings. The Student t-test and Mann–Whitney U test were used to compare differences in outcomes between every two cohorts. Chi-square test was used to analyze the enumeration data. Spearman's correlation analysis was used to estimate the correlations between various factors. All statistical analyses were performed using SPSS V.19.0 software. P values less than 0.05 were considered statistically significant.
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6

Spectrophotometric Analysis of Sterilization Methods

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Spectrophotometric data for comparing sterilization methods were first analyzed with the Shapiro-Wilk and Levene tests (IBM SPSS v19; SPSS Inc., IBM Company, Armonk, NY) (α=0.05). Then, spectrophotometric measurements (mAbs) were tested with one-way ANOVA followed by Tukey’s HSD post-hoc test (α=0.05) (IBM SPSS v19; SPSS Inc.). Sample power analysis was performed using GPower 3.1 (G*Power; Universität Düsseldorf, Düsseldorf, North Rhine-Westphalia, Germany).
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7

Proliferation Study for Drug IC50 Analysis

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IC50 values were calculated from the data of proliferation study (n = 4) by Probit regression with SPSS V19.0 (Chicago, USA). An average proliferation value, instead of individual ones of each treatment, was used for IC50 calculation to get better fitted curve. All other measurement data were shown as mean with SD error bars. Statistical analysis was carried out using independent sample t-test (2 groups) or LSD one-way ANOVA test (over 2 groups) with SPSS V19.0 (Chicago, USA). Statistical significant were marked as * (P < 0.05), ** (P < 0.01), and *** (P < 0.001).
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8

Plasma Biomarkers for Obesity Diagnosis

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All experiments were performed in triplicate. Data were statistically analyzed using Graphpad Prism5 and SPSS v. 19.0 and are presented as the means ± standard deviations (SDs). Independent-samples t tests, assuming equal variances, and one-way analysis of variance (ANOVA) were used for microarray and ELISA data comparisons between the SA and HC groups. Post hoc tests of one-way ANOVA were performed with the least-significant difference (LSD) and Student-Newman-Keuls (S-N-K) tests for data with equal variances or the Tamhane test for data with unequal variances. Correlation analysis and regression analysis were used to analyze plasma concentrations in association with BMI and leptin levels, and analysis of covariance was performed to eliminate the impact of BMI on leptin concentrations in serum samples. Receiver operating characteristic (ROC) curves of ELISA data were plotted using SPSS v. 19.0 software, and quantification was based on the optimal cutoff value with the maximum Youden index (Youden index = sensitivity + specificity—1). Combination diagnosis was evaluated with a prediction equation constructed by logistic regression, and serial and parallel tests were performed to verify the accuracy of diagnosis. Differences or associations with P values of less than 0.05 were considered statistically significant.
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9

Rumen Function and Microbial Dynamics Analysis

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The differences of data related to growth performance, serum parameters, rumen morphology, mRNA expressions, rumen fermentations and bacterial abundances between groups were analyzed using One-way ANOVA followed Duncan’s post hoc testing in SPSS v.19.0, results were presented as means ± SEM. P-values less than 0.05 were regarded as statistical significance. The correlation between rumen VFA concentrations or bacteria abundances and epithelium gene expression was analyzed by using Spearman’s correlation analysis in SPSS v.19.0, P-values less than 0.05 and the absolute value of correlation coefficient more than 0.8 were regarded as significant correlation.
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10

Alexithymia and Regional Homogeneity

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The demographic data (except for gender) and TAS-20 scores of the Alex group and the HC group were compared by two-sample t-tests, which were conducted using SPSS V.19.0 statistical software and Excel. Differences were considered significant at a two-sided p value of 0.05 or highly significant at a p value of 0.01.
The voxel-by-voxel-based ReHo comparisons between the Alex group and the HC group were performed with two-sample t-test using the REST software (p<0.01, AlphaSim correction, cluster size>20) without age and gender being regressed out because the participants of the two groups were close in age and gender ratio table 1).
The Pearson’s correlation between the ReHo values extracted from the brain regions showing significant group differences and the three TAS-20 subscales’ scores within the Alex group was calculated (p<0.01). The analysis was conducted using the SPSS V.19.0 statistical software. Differences were considered significant at a two-sided p value of 0.05 or highly significant at a two-sided p value of 0.01.
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