Handcrafts and folk art in Jalisco to make a variety of wares, which include furniture, toys and cooking utensils. The most common item is furniture of various types. The best known furniture piece produced in the state is the equipal chair, which are round made with strips of wood and backs and seats of leather. This chair has become common in Mexican restaurants in Mexico and the United States, as well as popular for gardens and terraces. The main center for their production is Zocoalco de Torres, where numerous families make them. They were originally ceremonial chairs, reserved for priests and the upper classes. The wood
Differential item functioning Differential item functioning Differential item functioning (DIF) is a statistical characteristic of an item that shows the extent to which the item might be measuring different abilities for members of separate subgroups. Average item scores for subgroups having the same overall score on the test are compared to determine whether the item is measuring in essentially the same way for all subgroups. The presence of DIF requires review and judgment, and it does not necessarily indicate the presence of bias. DIF analysis provides an indication of unexpected behavior of items on a test. An item does not display DIF if