Hero (Skillet song) Course parking lot with the band performing in front of pyrotechnics and being doused in rain, with cuts of modern/every day heroes, such as a fireman, a US marine, a police officer, and a nurse. Around October 1, 2016, it passed 100 million views on YouTube. The song was nominated for both "Rock Recorded Song of the Year" and "Short Form Video of the Year" at the 41st GMA Dove Awards. Hero (Skillet song) "Hero" is the first single of the 2009 album "Awake" by the American Christian rock band Skillet and is the first track on the album. The
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