Oggy Oggy Oggy other side of the River Tamar. "Oggy" is a slang term for a Cornish pasty, derived from its Cornish name, ""hoggan"", and was used by local Devon and Cornish sailors at the Devonport Dockyard in reference to pasty sellers who once stood outside the gates. The Devonport marines are still associated with the song which they generally sing at public displays. Tin-miners' wives or pasty sellers supposedly shouted ""Oggy Oggy Oggy"" – the response from any hungry miner or labourer would be "Oi!, Oi!, Oi!." The chant is also the chorus of a folk song and has always been heard
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