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Until the development of tau-equivalent reliability, split-half reliability using the Spearman-Brown formula was the only way to obtain inter-item reliability. [4] [5] After splitting the whole item into arbitrary halves, the correlation between the split-halves can be converted into reliability by applying the Spearman-Brown formula.
Reliability does not imply validity.That is, a reliable measure that is measuring something consistently is not necessarily measuring what is supposed to be measured.
Often discussed in tandem with KR-20, is Kuder–Richardson Formula 21 (KR-21). [4] KR-21 is a simplified version of KR-20, which can be used when the difficulty of all items on the test are known to be equal.
The doctors and nurses didn’t believe Tomisa Starr was having trouble breathing. Two years ago, Starr, 61, of Sacramento, California, was in the hospital for a spike in her blood pressure.
The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as indexed by Clarivate's Web of Science.
The Job Creation Act (Indonesian: Undang-Undang Cipta Kerja), officially Act Number 11/2020 on Job Creation (Undang-Undang Nomor 11 Tahun 2020 Tentang Cipta Kerja, or UU 11/2020), is a bill that was passed on 5 October 2020 by Indonesia's House of Representatives, with the aim of creating jobs and raising foreign and domestic investment by reducing regulatory requirements for business permits ...
The 2020–21 Chicago Blackhawks season was the 95th season for the National Hockey League franchise, established on September 25, 1926. [1] Jeremy Colliton led the Blackhawks in his second full year as head coach.
The 2020–21 Kentucky Wildcats men's basketball team represented the University of Kentucky in the 2020–21 NCAA Division I men's basketball season. The team played its home games in Lexington, Kentucky , for the 45th consecutive season at Rupp Arena , with a capacity of 20,545.