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DirecTV and Dish have launched internet-delivered pay-TV packages, but those have not offset losses on the satellite side. Together, DirecTV and Dish have nearly 20 million customers, which is ...
The name of this formula stems from the fact that is the twentieth formula discussed in Kuder and Richardson's seminal paper on test reliability. [1] It is a special case of Cronbach's α, computed for dichotomous scores. [2] [3] It is often claimed that a high KR-20 coefficient (e.g., > 0.90) indicates a homogeneous test. However, like ...
Four practical strategies have been developed that provide workable methods of estimating test reliability. [7] 1. Test-retest reliability method: directly assesses the degree to which test scores are consistent from one test administration to the next. It involves: Administering a test to a group of individuals
Congeneric reliability applies to datasets of vectors: each row X in the dataset is a list X i of numerical scores corresponding to one individual. The congeneric model supposes that there is a single underlying property ("factor") of the individual F, such that each numerical score X i is a noisy measurement of F.
No. DirecTV Stream doesn’t require the same two-year contract that DirecTV does. But if you sign up for 24 months, you can get a standard DirecTV device for free with your Stream subscription ...
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This is a list of statistical procedures which can be used for the analysis of categorical data, also known as data on the nominal scale and as categorical variables. General tests [ edit ]
Let's look at DirecTV (NAS: DTV) and three of its industry peers, to see how efficiently they use cash. Here are the ROIC figures for each company over a few periods. Here are the ROIC figures for ...