Hollander and Wolfe (1999) presented Hamilton depression scale factor measurements for 9 patients with mixed anxiety and depression. Measurements were taken at a time preceding administration of tranquilizer, and a time after tranquilizer administration.
data(depression)A data frame with 18 observations on the following 3 variables.
subjectExperimental subject.
scaleHamilton depression scale score. 0-7 is considered to be normal. Scores of 20 or higher indicate moderate to very severe depression
timeA factor with levels post pre indicating before and after tranquilizer treatment.