Reliability and validity statistics in oral health research
商品資訊
相關商品
商品簡介
商品簡介
Whenever we observe or measure, we are concerned with whether we are measuring what we intend to measure or whether our observations are influenced by the circumstances in which they are made and we reach conclusions about the quality of our measures conclusions that will play an important broader role in addressing the substantive issues of our study.A good measure must not only be reliable but also valid. We often think of reliability and validity as separate ideas but, in fact, they're related to each other. A measure can not be valid unless it is reliable, but a reliable measure may not be valid, and 'Reliability is a necessary but not sufficient condition for validity'.
主題書展
更多書展本週66折
您曾經瀏覽過的商品
購物須知
外文書商品之書封,為出版社提供之樣本。實際出貨商品,以出版社所提供之現有版本為主。部份書籍,因出版社供應狀況特殊,匯率將依實際狀況做調整。
無庫存之商品,在您完成訂單程序之後,將以空運的方式為你下單調貨。為了縮短等待的時間,建議您將外文書與其他商品分開下單,以獲得最快的取貨速度,平均調貨時間為1~2個月。
為了保護您的權益,「三民網路書店」提供會員七日商品鑑賞期(收到商品為起始日)。
若要辦理退貨,請在商品鑑賞期內寄回,且商品必須是全新狀態與完整包裝(商品、附件、發票、隨貨贈品等)否則恕不接受退貨。