A simulated data set containing observations of 100 individuals at four time points. The data was simulated in two groups (50 individuals each) and contains two questionnaires with five items each, one questionnaire with five continuous variables and one additional cross-sectional continuous variable. In this data set the group variable from the simulation is included. You typically don't have this group variable in your data.
fake_questionnaire_dataA data frame with 400 rows and 20 variables:
patient ID
time point of the observation
to which simulated group the observation belongs to
age of the patient at time point 1
a cross-sectional continuous variable, i.e. there is only one unique value per individual
the first item of questionnaire A with categories 1 to 5
the second item of questionnaire A with categories 1 to 5
the third item of questionnaire A with categories 1 to 5
the fourth item of questionnaire A with categories 1 to 5
the fifth item of questionnaire A with categories 1 to 5
the first item of questionnaire B with categories 1 to 5
the second item of questionnaire B with categories 1 to 5
the third item of questionnaire B with categories 1 to 5
the fourth item of questionnaire B with categories 1 to 5
the fifth item of questionnaire B with categories 1 to 5
the first continuous variable of questionnaire C
the second continuous variable of questionnaire C
the third continuous variable of questionnaire C
the fourth continuous variable of questionnaire C
the fifth continuous variable of questionnaire C