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Spss statistics 25 for windows software

Manufactured by IBM
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SPSS Statistics 25 for Windows is a statistical software package developed by IBM. It is designed to analyze and visualize data. The software provides a range of statistical techniques, including descriptive statistics, regression analysis, and hypothesis testing.

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8 protocols using spss statistics 25 for windows software

1

Fungal Diversity and Aflatoxin Analysis

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The mean fungal frequencies and the mean aflatoxin concentrations were subjected to a three-way ANOVA (multivariate) test, followed by Tukey’s HSD test (p < 0.05) using the GraphPad Prism 8.0.0. software for Windows, San Diego, CA, USA, www.graphpad.com. A cluster analysis was performed and a dendrogram of phenotypic relatedness was constructed using the IBM® SPSS® Statistics software for Windows 25.0.
To evaluate the association between aflatoxin production and the sclerotia morphotype, a logistic regression analysis was performed using the IBM® SPSS® Statistics software for Windows 25.0. A principal coordinate analysis (PCoA) was performed using GenAlEx® 6.5 software [47 (link)]. Aspergillus flavus isolates were selected by a random sampling method based on morphologically and physiologically characterized isolates representing the phenotypes of Aspergillus flavus (section Flavi), Aspergillus tamarii (section Flavi), A. awamorii (section Nigri), and Aspergillus section Aspergillus.
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2

Immune Cell Subset Analysis Protocol

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For statistical analysis, we used IBM SPSS Statistics 25 Software for Windows (Version 25.0; IBM Corporation, Armonk, NY, USA). After testing for normal distribution by Shapiro‐Wilk test, data were analyzed by Generalized Linear Mixed Models (GLMM) with Bonferroni correction. If data exhibited a right‐skewed distribution pattern gamma distribution was used. The percentual changes of immune cell subsets in the course of treatment were calculated from absolute numbers in comparison to baseline. P‐values were considered significant as follows: *P ≤ 0.05, **P ≤ 0.01, ***P ≤ 0.001 and ****P ≤ 0.0001. Graphs were created with GraphPad PRISM 8 (Graphpad Software, San Diego, CA, USA).
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3

Longitudinal Analysis of Cellular Adhesion Molecules

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Statistical analysis was performed by IBM SPSS Statistics 25 Software for Windows (Version 25.0; IBM Corporation, Armonk, NY, USA). The Mann–Whitney U-test for independent samples was used to detect differences between the baseline values of pwMS and healthy blood donors. To evaluate changes in CAMs and CoSs over time, we used generalized linear mixed models (GLMM) with Bonferroni’s correction. GLMM was also used to test for intra-individual significant differences within HCs to determine stability of CAM and CoS expression. Data were tested for a normal distribution with the Shapiro–Wilk test. If the data exhibited a right-skewed distribution pattern, a gamma distribution was used. Significant differences for the CLAD-associated effects on the expression pattern of CAMs and CoSs on lymphocytes were calculated every 3 months throughout the 2-year observational period and compared with pre-treatment values (BL). The evaluation of CD154 expression was made after cell stimulation in a separate experiment, which allowed the possibility to calculate absolute cell numbers. In this regard, CD4+ cell counts were extracted from complete blood cells. p-values were considered significant as follows: * p ≤ 0.05, ** p ≤ 0.01, *** p ≤ 0.001 and **** p ≤ 0.0001. Graphs were created with GraphPad PRISM8 (GraphPad Software, San Diego, CA, USA).
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4

Psychological Factors Affecting Pain and Relapse

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All statistical analyses were performed using SPSS Statistics 25 software for Windows (SPSS Inc. Chicago, IL, USA). The independent t-test was used to analyze the differences in SCL-90-R T scores between groups G and P and between the groups N and R. One-way ANOVA was used to analyze differences in SCL-90-R T scores between the four groups (group G/N, group G/R, group P/R, and group P/N).
Multiple logistic regression analysis was used to identify psychological factors affecting treatment outcome. SCL-90-R scores and clinical factors were used as independent variables, and the presence of post-treatment pain and recurrence as dependent variables. The dependent variables were as follows:

No pain = 0; pain = 1

Non-relapse = 0; relapse = 1

A forward stepwise selection model was used to identify variables affecting treatment outcome. Variables were entered based on the significance calculated from the likelihood ratio test. Pearson's correlation analysis was performed to investigate the relationship between psychological factors and treatment duration in group G. P-values <0.05 were considered statistically significant.
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5

Shoulder Morphometry Analysis

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Statistical analysis was performed using the SPSS Statistics 25 Software for Windows. The normality test was performed using Kolmogorov–Smirnov tests to examine the distributions of all parameters. Differences between males and females were analyzed using the Student’s T-test if the data was normal, otherwise, Mann–Whitney U was used. Correlations between patients’ height, age, and shoulder morphometry were analyzed using the Spearman test. The significance level was set at 0.05 for all analyses.
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6

Examining COVID-19 Vaccination Intention

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Data were analyzed using SPSS® Statistics 25 for Windows software (IBM Corp., Armonk, New York, USA). Descriptive analyses were conducted on background or sociodemographic factors and HIV characteristics. The calculated mean and standard deviation are presented for continuous variables, and categorical variables are presented as numbers and percentages. Syntax was used for common data transformation [24 ] to account for non-normality within the linear model framework and ensure statistical conclusion validity. The results of the evaluation of assumptions led to the transformation of the variables to reduce skewness and the number of outliers, as well as improve the normality, linearity, and homoscedasticity of residuals.
Analyses were conducted to identify the specific beliefs underlying the IBM constructs that best explained COVID-19 vaccination intention. The enter method was used to run hierarchical multiple regression on each IBM component linked with intention. Finally, statistical significance was evaluated at the p < 0.05 level. The correlation between level of intention and status of the first COVID-19 vaccination was also analyzed using the Kendall Tau-B method.
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7

Statistical Analysis of Qualitative and Quantitative Data

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Distribution of qualitative variables was presented using frequencies and percentages, whereas for quantitative variables, means and SDs for normally distributed ones and medians and quartiles otherwise were used. χ2 test was used to examine the relationship between two qualitative variables. If at least 20% of cells in the analyzed table had expected frequencies lower than 5 the exact Fisher test for 2x2 tables and Fisher-Freeman-Halton test otherwise were used. Difference in mean age between studied groups was tested using Student’s t-test for independent samples. The difference in distribution of other quantitative variables between 2 groups was analysed using the Mann-Whitney test; when the size of the analysed subsample was lower than 30, the exact version of the test was used. Effects with p < 0.05 were treated as statistically significant. IBM SPSS Statistics 25 for Windows software was used.
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8

Statistical Analysis of Fracture Loads

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IBM SPSS Statistics 25 for Windows software (IBM Corp., Armonk, New York, USA) was used for the statistical analysis of the data. The fracture load means and standard deviations of all the material groups were calculated. The mean fracture load values of the groups were checked for normal distribution using the Kolmogorov-Smirnov test. Levene's test was used to test for the equality of group variances. The test groups were analyzed using one-way analysis of variance (ANOVA). Differences between the groups were examined using Dunnett's post hoc test. The significance level was p < 0.05.
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