Statistics in a Nutshell: A Desktop Quick Reference by Sarah Boslaugh

By Sarah Boslaugh

Need to profit facts on your task? wish aid passing a information path? Statistics in a Nutshell is a transparent and concise creation and reference for a person new to the topic. completely revised and improved, this variation is helping you achieve a great realizing of records with no the numbing complexity of many university texts.

Each bankruptcy provides easy-to-follow descriptions, in addition to photos, formulation, solved examples, and hands-on workouts. which will practice universal statistical analyses and examine a variety of suggestions with out getting into over your head, this can be your book.

  • Learn easy strategies of dimension and likelihood thought, information administration, and examine design
  • Discover simple statistical approaches, together with correlation, the t-test, the chi-square and Fisher’s precise checks, and concepts for interpreting nonparametric data
  • Learn complex thoughts in accordance with the overall linear version, together with ANOVA, ANCOVA, a number of linear regression, and logistic regression
  • Use and interpret data for enterprise and caliber development, clinical and public wellbeing and fitness, and schooling and psychology
  • Communicate with information and critique statistical details awarded by way of others

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Extra resources for Statistics in a Nutshell: A Desktop Quick Reference

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However, the problem of operationalization is much greater in the human sciences, when the object or qualities of interest often cannot be measured directly. Proxy Measurement The term proxy measurement refers to the process of substituting one measurement for another. Although deciding on proxy measurements can be considered as a subclass of operationalization, we will consider it as a separate topic. The most common use of proxy measurement is that of substituting a measurement that is inexpensive and easily obtainable for a different measurement that would be more difficult or costly, if not impossible, to collect.

The Tribune decided to print papers based on those early results, which were based on a biased sample of results from eastern states. What the Tribune did not anticipate was that Truman would carry many western states, including California, and thus amass sufficient electoral votes to win the election. 20 | Chapter 1: Basic Concepts of Measurement Chapter 2Probability 2 Probability In a conventional textbook, this chapter would be titled something like “A Brief Introduction to Probability Theory” or “Fundamentals of Probability for Beginners,” in either case warning you that a Very Serious Topic was about to be broached, and that however forbidding the chapter might appear, it was only scratching the surface of a subject beyond the comprehension of most poor mortals.

Split-half reliability, described above, is another method of determining internal consistency. This method has the disadvantage that, if the items are not truly 10 | Chapter 1: Basic Concepts of Measurement Measures of Agreement The types of reliability described above are useful primarily for continuous measurements. When a measurement problem concerns categorical judgments, for instance classifying machine parts as acceptable or defective, measurements of agreement are more appropriate. For instance, we might want to evaluate the consistency of results from two different diagnostic tests for the presence or absence of disease.

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