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The basic starting point for almost all theories of test reliability is the idea that test scores reflect the influence of two sorts of factors: [7] 1. Consistency factors: stable characteristics of the individual or the attribute that one is trying to measure.
The source reliability is rated between A (history of complete reliability) to E (history of invalid information), with F for source without sufficient history to establish reliability level. The information content is rated between 1 (confirmed) to 5 (improbable), with 6 for information whose reliability can not be evaluated.
It is formed when a diagonal line can be drawn between a minimum of three or more price pivot points. A line can be drawn between any two points, but it does not qualify as a trend line until tested. Hence the need for the third point, the test. Trend lines are commonly used to decide entry and exit timing when trading securities. [1]
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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 ...
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.
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 ...
Content validity evidence involves the degree to which the content of the test matches a content domain associated with the construct. For example, a test of the ability to add two numbers should include a range of combinations of digits. A test with only one-digit numbers, or only even numbers, would not have good coverage of the content domain.