Category: SPSS
Select Cases in SPSS
In this tutorial, we will explore how to select cases in SPSS. Based on the selected cases, this tutorial will show you how to analyze data after applying those filters. This process allows you to focus on specific groups within...
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SPSS Tutorial for Beginners: Data vs. Variable Views and Descriptive Statistics
This tutorial provides an introduction to using SPSS for basic data analysis. You will learn how to navigate the SPSS interface and perform simple descriptive analyses using an example dataset. The goal is to help beginners become familiar with key...
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Levene’s Test in SPSS
1. What is Levene’s Test? Levene’s Test is a statistical test used to assess the equality of variances (homogeneity of variance) across multiple groups. It checks whether different samples have similar variances, which is an important assumption for parametric tests...
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Chi Square Analysis in SPSS
Chi Square analysis (more specifically, Chi square independence test in this tutorial) is a statistical test used to determine if there is a significant association between two categorical variables. It assesses whether the observed frequencies of the variables in a...
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McNemar’s Test in SPSS
This tutorial explains the definition of McNemar’s test, the writing of the null and alternative hypotheses for McNemar’s test, the steps of conducting it in SPSS, and how to interpret the output of McNemar’s test as well as how to...
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Linear Mixed Models in SPSS
This tutorial includes the explanation of what a linear mixed model is, how to structure its statistical model, data example, as well as steps for linear mixed models in SPSS. Definition of Linear Mixed Models Linear mixed models (LMMs) are...
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How Dummy and Contrast Codings Impact P-values in SPSS
This tutorial discusses how dummy and contrast codings impact p-values in SPSS for linear regressions. Single Categorical Variable We can start with only one Y (numerical data, or continuous data) and one X (categorical data). We keep it simple to...
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Comparisons of t-distribution and Normal distribution
This tutorial compares t-distribution and normal distribution by explaining the similarities and connections between t-distribution and normal distribution. Similarities between t-distribution and normal distribution There are a few similarities between t-distribution and normal distribution. The following figure shows the t-distribution...
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Major Python Packages for Hypothesis Testing
The 2 popular Python packages for hypothesis testing are scipy.stats and statsmodels. The following includes a brief introduction to each of them, along with simple examples. Introduction of Scipy.stats Based on scipy.stats official webpage, the module contains a large number...
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What Is Hypothesis Testing
Definition of Hypothesis Testing Hypothesis Testing is an inferential statistical method using sample data to solve assumptions about population parameters (characteristics that describe a population). For instance, you want to test if people in New York City’s attitudes toward the new iPhone...
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