This is done by studying the studentâs responses to each item. When formalized, the procedure is called âitem analysisâ. It is a scientific way of improving the quality of tests and test items in an item bank. An item analysis provides three kinds of important information about the quality of test items. 1  Item difficulty: A measure of whether an item was too easy or too hard. 2  Item discrimination: A measure of whether an item discriminated between students who knew the material well and students who did not.
For example, Jewish kosher and Islamic Halal customs require gelatin from sources other than pigs, like cows and/or fish and from animals slaughtered ritually. Roma people are cautious of gelatin products that may have been made from horses, as their culture forbids the consumption of horses.n a commercial scale, gelatin is made from by-products of the meat and leather industry. Recently, fish by-products have also been considered because they eliminate some of the religious obstacles surrounding gelatin consumption. Gelatin is derived from pork skins, pork, horses, and cattle bones, or split cattle hides.
Kosher gelatin is made from fish bones, or from the bones and hides of animals. that were slaughtered properly. Gelatin is kosher when it is produced in a factory that has the proper certification. from a respected kashrut organisation.osher usually means no pork, shellfish, etc. Anything that the Bible says â¦ not to eat, is what kosher products refrain from using. Gelatin is made from animals, even the kosher brand. The website link below will explain it a little bit better.  It's made of cow, instead of pig-so it's not vegetarian.