Sometimes, you may be OK with 100% on an item, particularly if it is something that is critical for students to know. Item Discrimination: Point Biserial Index (PBI) (McGahee & Ball, 2009) Correlation between score on an item and score on the exam Differentiates between those who have high or low test scores Range from -1 to +1
Fish Mox was reccomended for my cats by a friend who used it on his. I have a barn full of cats that were kind of sickly all the time. I got the Fish Mox, dissolved one capsule in one gallon of water everyday. In about a week, I noticed that most of the cats looked alot better.
Livers typically do not produce many huge catfish. However, for channel cats up to about 10 pounds, chicken livers are extremely productive. They also are inexpensive and available from any grocery store. One major caveat of baiting up with chicken livers is that they initially can be difficult to keep on the hook.