{"product_id":"9780805859928","title":"Handbook of Polytomous Item Response Theory Models","description":"\u003cp\u003eFocuses on the most used polytomous item response theory (IRT) models. This book reviews the major models and includes discussions about how and where the models originated, conceptually and in practical terms. It also provides diverse perspectives on how these models can best be evaluated.\u003c\/p\u003e","brand":"Routledge","offers":[{"title":"Default Title","offer_id":48683592122603,"sku":"00000_00000_00000_00000","price":203.24,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/4484\/5803\/files\/9780805859928-1.jpg?v=1781639800","url":"https:\/\/kinokuniya.com.sg\/ja\/products\/9780805859928","provider":"Books Kinokuniya Singapore","version":"1.0","type":"link"}