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Table 2 Representation of the scores on "evaluative" instrument A and "discriminative" instrument B in a randomized clinical trial [1]

From: Responsiveness: a reinvention of the wheel?

Instrument A Time 1 Time 2 Intervention Time 3 Difference score Exercise test Result
Subject 1 8 9 Verum 15 +6 Much improved
Subject 2 9 8 “” 15 +7 Much improved
Subject 3 8 9 “” 15 +6 Much improved
Subject 4 9 8 “” 15 +7 Much improved
Subject 5 8 9 Placebo 8 -1 Unchanged
Subject 6 9 8 “” 9 +1 Unchanged
Subject 7 8 9 “” 8 -1 Unchanged
Subject 8 9 8 “” 9 +1 Unchanged
Instrument B Time 1 Time 2   Time 3 Difference score Exercise test Result
Subject 1 5 5 Verum 5 0 Much improved
Subject 2 9 9 “” 9 0 Much improved
Subject 3 13 13 “” 13 0 Much improved
Subject 4 17 17 “” 17 0 Much improved
Subject 5 5 5 Placebo 5 0 Unchanged
Subject 6 9 9 “” 9 0 Unchanged
Subject 7 13 13 “” 13 0 Unchanged
Subject 8 17 17 “” 17 0