Date of Origination: 1/16/96 Collected by: Paul Martin Last modification: 1/16/96 by PSM Description: Data are from an experiment conducted on the three treatments young girls recieve for anorexia. The three groups were Cognitive behavioural treatment, Family therapy, and a control which was the standard treatment. Source: Hand, D.J., F. Daly, A.D. Lunn, K.J. McConway, and E. Ostrowski (1994) A Handbook of Small Data Sets. London: Chapman & Hall. #285: Anorexia data. Number of observations: 72 Variables: There are 5 variables in the data file. v1 " Weight before treatment, kg" v2 "Weight after treatment,kg" v3 "Treatment Group" 1= Cognitive behavioural 2= Control 3= Family therapy v4 "Absolute Difference in weight from before to after" v5 "Relative Difference in weight from before to after" First three observations from datafile: 80.5 82.2 1 1.699997 .021118 84.9 85.6 1 .6999969 .008245 81.5 81.4 1 -.0999985 -.001227 Last three observations from datafile: 89.9 93.8 3 3.900002 .0433815 86 91.7 3 5.699997 .066279 87.3 98 3 10.7 .1225658