00430pam a2200133 a 4500020001600000050001700016100002300033245006900056260005000125300003900175500002000214650004100234700002100275  a0070538719 00aBF 76.5bROS1 aRosenthal, Robert.10aEssentials of behavioral research :bmethods and data analysis /  aNew York :bMcGraw-Hill Book Company,cc1984.  axvii, 519 pages :bIllustrations ;  aIncludes index. 0aPsychology - research - methodology.1 aRosnow, Ralph L.