{"product_id":"2940156912391","title":"Effect size","description":"In statistics, an effect size is a quantitative measure of the strength of a phenomenon. Examples of effect sizes are the correlation between two variables, the regression coefficient in a regression, the mean difference, or even the risk with which something happens, such as how many people survive after a heart attack for every one person that does not survive. For each type of effect-size, a larger absolute value always indicates a stronger effect.","brand":"Charles Hunter","offers":[{"title":"Default Title","offer_id":47083717886192,"sku":"2940156912391","price":1.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940156912391_p0.jpg?v=1764093050","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940156912391","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}