00459pamaa2200169 4500 0000021913 20060502090000.0 0803957041 300.723 LIT 1995 HN29 LIT 1995 LITWIN How to measure survey reliability and validity Mark S. Litwin. Thousand Oaks: Sage Pub., 1995. vii, 87p.; 23cm. The survey kit Health surveys Social surveys