Application of the Kuder Richardson reliability coefficient on a scale for the review and prevention of the effects of routines
Impact of the pandemic derived from covid-19
Abstract
Reliability is and has undoubtedly been one of the most critical issues for psychology, which, although it has been taking from various knowledge and formal processes from mathematics and statistics everything necessary to be able to develop instruments with a level of approach to current demands, there are often various obstacles. Internal consistency refers to the degree of the project and through which the scale is interrelated with itself. The calculation formula for internal consistency is The Kuder-Richardson formula, from the dichotomous scale or Guttman scalogram, and Cronbach's Alpha coeficient is used for multiple response scales. Consider the internal consistency if it ranges between 0.70 and 0.90, it is acceptable. Determining the consistency of the scale requires 5 to 20 participants. For each item. The internal consistency of the instrument varies according to the population when applying it, it is always necessary to indicate the value each time a new application is submitted.
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