{"product_id":"9780761930686","title":"Polytomous Item Response Theory Models (Quantitative Applications in the Social Sciences)","description":"\u003cp\u003eProvides a comprehensive introduction to the range of polytomous models available within item response theory. Practical examples of major models using real data are provided, as is a chapter on choosing an appropriate model. Figures are used throughout to illustrate important elements, as they are described.\u003c\/p\u003e","brand":"SAGE Publications Inc","offers":[{"title":"Default Title","offer_id":48680659353835,"sku":"00000_00000_00000_00000","price":100.71,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/4484\/5803\/files\/9780761930686-1.jpg?v=1781636157","url":"https:\/\/kinokuniya.com.sg\/zh\/products\/9780761930686","provider":"Books Kinokuniya Singapore","version":"1.0","type":"link"}