A fictional dataset with missings to exemplify the use of HLM method for clinical significance.
Format
A data frame with 580 rows and 4 variables:
subjectParticipant
treatmentTreatment. Either Placebo or Intervention
measurementNumber of measurement
anxietyAnxiety score (lower is better)
Details
In a fictional clinical trial, participants were split up to belong to either a medical placebo ("Placebo") or psychotherapeutic intervention ("Intervention") group.
They underwent outpatient treatment during which they were followed for 5 measurements at which a fictional anxiety score was measured. This anxiety score may range from 0 - 60.
The functional population (i.e., non-anxious individuals) can be expected to have a mean score of M = 8 points with a standard deviation of SD = 4.