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.
Format
A data frame with 400 rows and 20 variables:
- ID
patient ID
- visit
time point of the observation
- group
to which simulated group the observation belongs to
- age_visit_1
age of the patient at time point 1
- single_continuous_variable
a cross-sectional continuous variable, i.e. there is only one unique value per individual
- questionnaire_A_1
the first item of questionnaire A with categories 1 to 5
- questionnaire_A_2
the second item of questionnaire A with categories 1 to 5
- questionnaire_A_3
the third item of questionnaire A with categories 1 to 5
- questionnaire_A_4
the fourth item of questionnaire A with categories 1 to 5
- questionnaire_A_5
the fifth item of questionnaire A with categories 1 to 5
- questionnaire_B_1
the first item of questionnaire B with categories 1 to 5
- questionnaire_B_2
the second item of questionnaire B with categories 1 to 5
- questionnaire_B_3
the third item of questionnaire B with categories 1 to 5
- questionnaire_B_4
the fourth item of questionnaire B with categories 1 to 5
- questionnaire_B_5
the fifth item of questionnaire B with categories 1 to 5
- questionnaire_C_1
the first continuous variable of questionnaire C
- questionnaire_C_2
the second continuous variable of questionnaire C
- questionnaire_C_3
the third continuous variable of questionnaire C
- questionnaire_C_4
the fourth continuous variable of questionnaire C
- questionnaire_C_5
the fifth continuous variable of questionnaire C