![]() ![]() ![]() At a more conceptual level, the coefficient of Cronbach’s alpha may be considered as the coefficient between a sincere response and all other sincere responses of the same item that are drawn randomly from the same population of interest. The closer the alpha is to 1.00, the greater the internal consistency of items in the research instrument. They correspond closely with criteria commonly used to assess quantitative research: reliability - dependability internal validity. Although a negative value is possible, such a value indicates a scale in which some items measure the opposite of what other items measure. It is measured on the same scale as the Pearson’s product-moment correlation coefficient and typically varies between 0 and 1. It is simply a measure of reliability of the questionnaire items. Reliability and validity are among the most important and fundamental domains in the assessment of any measuring methodology for data-collection in a good research. Quixotic Reliability: Refers to the situation where a single manner of observation consistently. A qualitative research approach based on a researchers narrative account of the investigation. Cronbach’s alpha is a consistency test of whether all items within the instrument measure the same thing. Internal Consistency: The extent to which all questions or items assess the same characteristic. Reliability measures the extent to which results are consistent with time and acts as the best representation of the population under study (Joppe, 2000). It is designed as a measure of internal consistency of a research instrument. The reliability of any research questionnaire is best measured by the Cronbach’s alpha statistic. ![]()
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