- short (from a couple of hours) ad-hoc work
- urgent problem fixing
- to long term support and coaching
Improve the quality of the items. Increase the number of items.;Improve the quality of the items Items that are either too easy so that almost everyone gets them correct or too difficult so that almost no one gets them correct are not good items: they provide very little information. # In most contexts, items which about half the people get correct are the best (other things being equal). Items that do not correlate with other items can usually be improved. Remove confusing and/or ambiguous items.