Research Article
Sample Size Determination for Repeated Measurements using Three Possible Methods of Analysis, POST, CHANGE and ANCOVA, under Various Covariance Structures for Two Groups
National Institute for Research in Tuberculosis, Chennai 600 031, India
G. Gopal
Department of Statistics, University of Madras, Chennai 600 005, India
W. Basilea
National Institute for Research in Tuberculosis, Chennai 600 031, India