Understanding Statistical Analysis and Modeling is a text for graduate and advanced undergraduate students in the social, behavioral, or managerial sciences seeking to understand the logic of statistical analysis. Robert Bruhl covers all the basic methods of descriptive and inferential statistics in an accessible manner by way of asking and answering research questions. Concepts are discussed in the context of a specific research project and the book includes probability theory as the basis for understanding statistical inference. Instructions on using SPSS® are included so that readers focus on interpreting statistical analysis rather than calculations. Tables are used, rather than formulas, to describe the various calculations involved with statistical analysis and the exercises in the book are intended to encourage students to formulate and execute their own empirical investigations.

Tools for Making Statistical Inferences

Estimation Studies

In Chapter 2, we discussed two different types of empirical study. First, we described a case study in which an investigator is interested in a specific set of phenomena with regard to some property all of them share. In Chapters 3 to 5, we then described ways in which such observations might be summarized. Also in Chapter 2, we described an estimation study. In such a study, an investigator is interested in describing some property for a large population of phenomena, but for reasons of practicality the investigator cannot observe every one of those phenomena. The investigator will instead judiciously select a small set of phenomena—or a sample—from the larger population and use those observations to make general ...

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