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Alpha is also a function of the number of items, so shorter scales will often have lower reliability estimates yet still be preferable in many situations because they are lower burden. An alternative way of thinking about internal consistency is that it is the extent to which all of the items of a test measure the same latent variable. The ...
"Internal and external reliability and validity explained". "Uncertainty models, uncertainty quantification, and uncertainty processing in engineering". Archived from the original on 30 March 2014. "The relationships between correlational and internal consistency concepts of test reliability". Archived from the original on 27 September 2011.
The term "internal consistency" is commonly used in the reliability literature, but its meaning is not clearly defined. The term is sometimes used to refer to a certain kind of reliability (e.g., internal consistency reliability), but it is unclear exactly which reliability coefficients are included here, in addition to ρ T {\\displaystyle ...
In the case when scores are not tau-equivalent (for example when there is not homogeneous but rather examination items of increasing difficulty) then the KR-20 is an indication of the lower bound of internal consistency (reliability). The formula for KR-20 for a test with K test items numbered i = 1 to K is
Analysis of homogeneity (internal consistency), which gives an indication of the reliability of a measurement instrument. [117] During this analysis, one inspects the variances of the items and the scales, the Cronbach's α of the scales, and the change in the Cronbach's alpha when an item would be deleted from a scale [118]
In accounting, the convention in consistency is a principle that the same accounting principles should be used for preparing financial statements over a number of time periods. [ 1 ] [ 2 ] This enables the management to draw important conclusions regarding the working of the concern over a longer period. [ 3 ]
Common accounting constraints include objectivity (requiring verifiable evidence), the cost-benefit principle (weighing the cost of information against its usefulness), materiality (focusing on significant information), consistency (applying the same methods over time), industry practices (following accepted norms within a specific sector ...
In statistics, inter-rater reliability (also called by various similar names, such as inter-rater agreement, inter-rater concordance, inter-observer reliability, inter-coder reliability, and so on) is the degree of agreement among independent observers who rate, code, or assess the same phenomenon.