{"product_id":"9780803944169","title":"Methods for Identifying Biased Test Items","description":"\u003cp\u003eThis book makes clear to researchers what item-bias methods can (and cannot) do, how they work and how they should be interpreted.\u003c\/p\u003e\u003cp\u003eAdvice is provided on the most useful methods for particular test situations. The authors explain the logic of each method - from item-response theory to nonparametric, categorical methods - in terms of how differential item functioning (DIF) is defined by the method and how well the method can be expected to work. A summary of findings on the behaviour of indices in empirical studies is included. The book concludes with a set of principles for deciding when DIF should be interpreted as evidence of bias.\u003c\/p\u003e","brand":"SAGE Publications","offers":[{"title":"Default Title","offer_id":47016099938544,"sku":"9780803944169","price":70.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9780803944169_p0.jpg?v=1763728044","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9780803944169","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}