{"product_id":"invariant-measurement-with-raters-and-rating-scales","title":"Invariant Measurement with Raters and Rating Scales","description":"\u003cp\u003eThis book presents methods for developing, evaluating and maintaining rater-mediated assessment systems. Rater-mediated assessments involve ratings that are assigned by raters to persons responding to constructed-response items (e.g., written essays and teacher portfolios) and other types of performance assessments.\u003c\/p\u003e","brand":"Routledge","offers":[{"title":"Default Title","offer_id":50021785796858,"sku":"9781848725492","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0840\/1253\/1962\/files\/imageloader_208db4ca-1779-4694-a1bc-3c9bfea0d3ca.jpg?v=1786139242","url":"https:\/\/mindsourcebooks.com\/products\/invariant-measurement-with-raters-and-rating-scales","provider":"Mind Source Books","version":"1.0","type":"link"}