Skillet (band) 2015, they will co-headline the Winter Jam Tour 2015 in the central and eastern part of the United States alongside Jeremy Camp. They will also be part of the Winter Jam Tour 2015 West Coast. On May 11, 2016, Skillet announced a European tour from May 28 through July 3 including Rock am Ring. In July 2016, it was announced that Skillet would be going on a headlining Unleashed Tour with Sick Puppies, Thousand Foot Krutch, and Devour the Day, playing at club-sized venues in 18 cities primarily located along the East Coast of the United States to take place
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