A subset of data from Tomarken, Shelton, Elkins, and Anderson (1997)
measuring the relation between changes in positive mood and supplemental
antidepressant medication over the course of a week in a sample of 73 men and
women already receiving nonpharmacological therapy for depression.
     
    
    
    
    A person-period data frame with 1242 rows and
6 columns:
- id
- Participant ID. 
- wave
- Wave of measurement. 
- day
- Day of measurement. 
- reading
- Time of day of measurement. 
- positive_mood
- Positive mood score. 
- treatment
- Treatment condition (placebo pills = 0, antidepressant pills = 1). 
 
    
    Source
    Tomarken, A. J., Shelton, R. C., Elkins, L., & Anderson, T. (1997). Sleep
deprivation and anti-depressant medication: Unique effects on positive and
negative affect. Poster session presented at the 9th annual meeting of the
American Psychological Society, Washington, DC.