310

REPEATED-MEASUREMENT AND OTHER EXPERIMENTAL DESIGNS

19.6 ILLUSTRATIVE EXAMPLE OF TWO-FACTOR

R,

R,

EXPERIMENT WITH REPEATED MEASUREMENTS

The following are fictitious illustrative data for a repeated-measurement
experiment with six experimental subjects tested under 2 X 3 — 6 treatment
combinations.

Subject | Subject 2

Subject 3 Subject 4

For computational purposes it is necessary to write down the totals for
rows by columns summed over subjects, rows by subjects summed over
columns, and subjects by columns summed over rows. Viewing the data
as a cube of numbers, these are the numbers on the surface of the cube.
The totals for rows by columns summed over subjects, T,,., are as follows:

T,,.
Columns T,.
117
Rows
79
T. I9e<T.