Applied Mathematicsematics

Download Applied Psychometry (Sage Texts) by Narender Kumar Chadha PDF

By Narender Kumar Chadha

Applied Psychometry is designed as a middle textbook on perform of psychometry for undergraduate and post-graduate scholars of psychology and human source administration. it is going to aid the scholars of their learn of the next papers:

  • B.A. application Psychology (Core): mental evaluate
  • B.A. Honors Psychology (Core): Psychology: Psychometry or mental evaluate 1 and a pair of
  • M.A. Psychology: mental evaluation 1 and a couple of
  • Human source administration: Recruitment and choice, mental Assessment

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Extra info for Applied Psychometry (Sage Texts)

Example text

7. Statistical Errors Generally, statistical errors are divided into two types: 1. Errors of Descriptive Statistics: Under these are included standard errors and probable errors. 2. Inferential Errors: Under these are Type I and Type II errors. Errors of Descriptive Statistics There are two ways of calculating errors of descriptive statistics. The first is the standard error and the second is the probable error. Standard errors get quite affected by extremes because standard errors are calculated using standard deviations.

Rather, an attempt is usually made to identify the nature of the exact relationship among them to interpret and formulate deductive or probable explanation of the object, or the system or the event under study. In order to ascertain the extent, dimension or magnitude of something, or to determine the attribute of something with precision, scientists so often resort to measurement. This helps them to 18 Applied Psychometry obtain quantitative data or information about objects, phenomena, systems or their attributes.

For example, various emotions like disgust, jealousy, grief, surprise, and so on, are difficult to quantify. A researcher may find it difficult to decide various levels for such variables in quantifiable terms, and the choice of a number that is appropriate for a particular level of such attributes may become even more difficult. 2 Errors in Measurement CHAPTER OUTLINE 1. What are Errors of Measurement? 2. Sources/Types of Error: (i) (ii) (iii) (iv) (v) (vi) (vi) Accidental/Chance Error Systematic/Biased Error Interpretative Error Variable Error Personal Error Constant Error Statistical Error z z Errors of Descriptive Statistics Errors of Inferential Statistics LEARNING OBJECTIVES After reading this chapter, you will be able to understand: 1.

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