. The sum scores xi for issue i have sample suggest x¯ and sample variance sx2, the place sample indicate and variance are calculated around topics. Each and every exam merchandise has reaction yij, with i indexing issue and j indexing merchandise, and where y¯j may be the necessarily mean https://kuder-richardson-formula25927.tinyblogging.com/a-simple-key-for-kuder-richardson-unveiled-70365584