Example data to be used for centering
data(thai)
A data frame with 6606 rows and 18 variables:
First plausible value in mathematics.
Index of economic, social, and cultural status.
Highest parent occupational status.
Student gender. 1 = Female, 2 = Male.
Mathematics interest.
Mathematics self-efficacy.
School identifier
Spoke another language at home other than Thai. 1 = yes, 0 = no.
How many books at home.
Highest parental education in years.
Student weight.
Plausible value #1 for reading.
Plausible value #2 for reading.
Plausible value #3 for reading.
Plausible value #4 for reading.
Plausible value #5 for reading.
Private school. 1 = yes, 0 = no.
Total school enrolment.