Practical considerations when building concordances between English tests

Surmise Relations Between Tests - Mathematical Considerations

In 1985, Doignon and Falmagne introduced surmise relations for representing prerequisite relationships between items within a body of information for the assessment of knowledge. Often it is useful to partition such a body of information into sub-collections. As we are primarily interested in psychological applications, we refer to these sub-collections as tests. We extend the concept of surmis...

Practical Considerations When Using Fiber Optics for Dissolution Testing

Introduction The UV fiber optics system has emerged in dissolution testing of solid dosage forms as a useful alternative to conventional dissolution tests in both research & development and quality control. The system allows continuous in situ analysis of the drug concentration without the need for sample withdrawal and preparation. Therefore, this technique not only facilitates automation, but...

Practical considerations when generalizing study results: a potential outcomes perspective

Practical considerations when prescribing icodextrin: a narrative review.

BACKGROUND Icodextrin is a peritoneal dialysis solution that is commonly used to increase ultrafiltration during the long dwell. The other major clinical benefit of icodextrin is that it is glucose-sparing, which may help preserve peritoneal membrane function. Since it has a different chemical composition than dextrose, and with its increasing use, there are several clinical considerations heal...

Some statistical and logical considerations when rescoring tests

When tests or portions of tests are scored subjectively by raters, a rescoring will yield a change in the ratings of some examinees. In a test with a xed passing score a rescoring will result in the change of some pass/fail decisions. The number of changes depends on three things: the reliability of the rating system, the proportion of examinees that initially pass, and the policy used to incor...