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1 Chapter 9, Part A Hypothesis Tests Learning objectives
1 Chapter 9, Part A Hypothesis Tests Learning objectives

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... on 50 trips up the avenue and from the data you come to the conclusion that the (sample) probability of success is .5. You use a binomial table  p  .5, n  25  to figure out the probabilities of getting various numbers of red lights on a single run and then you record the number of times you get ...
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... continuous variable. It is recommended to use exact test for continuous variables when the sample size is less than 30.[2] Some of the SAS procedures, for example the NPAR1WAY and FREQ, provide EXACT statement which can be used for exact test. There are many published macros that generate a summary ...
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Psychometrics

Psychometrics is a field of study concerned with the theory and technique of psychological measurement. One part of the field is concerned with the objective measurement of skills and knowledge, abilities, attitudes, personality traits, and educational achievement. For example, some psychometric researchers have, thus far, concerned themselves with the construction and validation of assessment instruments such as questionnaires, tests, raters' judgments, and personality tests. Another part of the field is concerned with statistical research bearing on measurement theory (e.g., item response theory; intraclass correlation).As a result of these focuses, psychometric research involves two major tasks: (i) the construction of instruments; and (ii) the development of procedures for measurement. Practitioners are described as psychometricians. All psychometricians usually possess a specific qualification, and while most are psychologists with advanced graduate training, many work for the government or in human resources departments. Others specialize as learning and development professionals.
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