Fig. 2.

Test and re-test schedule for internal consistency, stability and objectivity analyses. Experiment 1, first day of measurement; Experiment 2, second day of measurement; rater A (evaluator A); rater B (evaluator B); test: first measurement on each day for each evaluator; re-test: second measurement (after reconnection of device) on each day for each evaluator. Sequence of tests:

1: test-retest of rater A on Experiment 1;

2: test-retest of rater B on Experiment 1;

3: test-retest of rater A on Experiment 2;

4: test-retest of rater B on Experiment 2;

5: Comparison of first measurement (test) between raters A and B on Experiment 1;

6: Comparison of second measurement (re-test) between raters A and B on Experiment 1;

7: Comparison of first measurement (test) between raters A and B on Experiment 2;

8: Comparison of second measurement (re-test) between raters A and B on Experiment 2;

9: comparison of test results of rater A between Experiment 1 and Experiment 2;

10: comparison of re-test results of rater A between Experiment 1 and Experiment 2;

11: comparison of test results of rater B between Experiment 1 and Experiment 2;

12: comparison of re-test results of rater B between Experiment 1 and Experiment 2.