Depression Data for Two Way Mixed ANOVA

The data correspond to an experiment in which a treatment for depression is studied. Two groups of patients (1: control / 2: treatment) have been followed at five different times (0: pre-test, 1: one month post-test, 3: 3 months follow-up and 6: 6 months follow-up). The dependent variable is a depression score.

Repeated measures ANOVA can be performed in order to determine the effect of the treatment and the effect of time on the depression score.

data("depression")

Format

A data frame with 24 rows and 5 columns.

Examples

data(depression)
head(as.data.frame(depression))
#>   id treatment  t0  t1  t2  t3
#> 1  1       ctr 296 175 187 242
#> 2  2       ctr 376 329 236 126
#> 3  3       ctr 309 238 150 173
#> 4  4       ctr 222  60  82 135
#> 5  5       ctr 150 271 250 266
#> 6  6       ctr 316 291 238 194