- Subject index
Bridging an understanding of Statistics and SPSS.
“The text is written in a user-friendly language and illustrates concepts that would otherwise be confusing to beginning students and those with limited computer skills.”
-Justice Mbizo, University of West Florida
This unique text helps students develop a conceptual understanding of a variety of statistical tests by linking the ideas learned in a statistics class from a traditional statistics textbook with the computational steps and output from SPSS. Each chapter begins with a student-friendly explanation of the concept behind each statistical test and how the test relates to that concept. The authors then walk through the steps to compute the test in SPSS and the output, clearly linking how the SPSS procedure and output connect back to the conceptual underpinnings of ...
Chapter 2: Descriptive Statistics
Introduction to Descriptive Statistics
Before we get into the formal “hypothesis testing” type of statistics that you're used to seeing in research articles, we will briefly cover some descriptive statistics. Descriptives are numbers that give you a quick summary of what your data look like, such as where the middle of the distribution is and how much the observations are spread around that middle.
Why should you be interested in these things? First, looking at descriptives is an excellent way to check for errors in data entry (which is especially important if you employ undergraduate research assistants!) and other irregularities in the data ...