00390nam a2200133Ia 4500020001800000082001800018100002200036245007100058260003600129300001500165504001900180650001500199650004200214  a0-8039-7918-5  a300.727 WRI-;  aWright, Daniel B. 0aUnderstanding statistics : an introduction for the social sciences  aLondonbSage Publicationsc1998  avii, 228p.  aIncludes index  aStatistics  aSocial sciences - Statistical methods