. The sum scores xi for subject matter I've sample imply x¯ and sample variance sx2, where by sample imply and variance are calculated over topics. Each individual check product has reaction yij, with i indexing topic and j indexing merchandise, and wherever y¯j is the imply response for item https://jeffreyuvwvu.ampedpages.com/the-basic-principles-of-kuder-richardson-formula-20-54123132