Oggy Oggy Oggy at Cornish rugby matches so this seem another possible origin. The Oxford English Dictionary (2004) entry for "Oggy" states: "Oggy, "noun". "West Country regional" (orig. "Cornwall") and "Navy" slang. A Cornish pasty. Probably an alteration of Cornish "hoggan" pastry, pie (18th century), perhaps cognate with Welsh "chwiogen" muffin, simnel cake (1562), of unknown origin." Members of the Royal Navy claim to have used the chant, or a version of it, since the Second World War. The 'Oggie, Oggie, Oggie' chant was used by supporters of the Royal Navy's Devonport Field Gun Team. (The field gun competition was disbanded in 1999
Item response theory talk about an item being about as hard as Person A's trait level or of a person's trait level being about the same as Item Y's difficulty, in the sense that successful performance of the task involved with an item reflects a specific level of ability. The item parameter formula_4 represents the discrimination of the item: that is, the degree to which the item discriminates between persons in different regions on the latent continuum. This parameter characterizes the slope of the IRF where the slope is at its maximum. The example item has formula_4=1.0, which discriminates fairly well; persons with