Essay: Research Ideas Implemented widely

Sample Essay

Alpha is one of the major research ideas that are used widely and expansively to measure test reliability, being developed by an educational psychologist known as Lee Cronbach. This is because the reliability of assessments is an essential component of educational research that helps analyze the validity of the tests that are being carried out.Where originally the methods that are used in the educational measurement were built on the foundation of classical test theory, item response theory and Rasch models, these are now so popular that they are being used worldwide in other fields as well. This is because they tend to cover up or remove the mistakes or flaws that were found apparent in these techniques by allowing the research design to keep a margin of error that may be evoked from the standard amount of errors that are liable to be made. Such as, for every score on an assessment or a strict pattern of scores that are recurring, and to even make amends for the handling of responses that may be missing.

One of the major methods used in educational research has to be the item response theory (IRT) also known as latent trait theory, strong true score theory, or modern mental test theory. It is the very basis on which the majority of the design, analysis, and scoring of tests, questionnaires, and similar instruments measuring abilities, attitudes, or other variables are being created and tested upon, since basically it is the creation that has its roots in  being an amalgamation of mathematical tools as well as models to represent data visually as well graphically, and in literary description too. It is considered a step ahead from the classic test theory, an advancement that goes as far as testing and creating the likes of major tests such as the Graduate Record Examination and Graduate Management Admission Test and Standard Admission test.

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