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. 2012 Feb 15;21(8):1603–1608. doi: 10.1007/s00586-012-2188-0

Table 4.

Mean, standard deviation, floor and ceiling effects for each BrQ question

BrQ Mean Standard deviation Number (%)
Floor effect Ceiling effect
Question 1 4.0 0.8 0 (0.0) 11 (31.4)
Question 2 3.5 1.0 0 (0.0) 7 (20.0)
Question 3 3.5 1.2 1 (2.9) 6 (17.1)
Question 4 3.0 1.2 4 (11.4) 4 (11.4)
Question 5 5.0 0.5 0 (0.0) 32 (91.4)
Question 6 5.0 0.1 0 (0.0) 33 (94.3)
Question 7 4.0 1.1 0 (0.0) 9 (25.7)
Question 8 4.0 1.2 2 (5.7) 8 (22.9)
Question 9 4.0 1.0 1 (2.9) 7 (20.0)
Question 10 4.0 0.9 0 (0.0) 13 (37.1)
Question 11 4.0 1.0 0 (0.0) 12 (34.3)
Question 12 3.0 1.2 6 (17.4) 0 (0.0)
Question 13 2.5 1.4 5 (14.3) 5 (14.3)
Question 14 4.0 1.0 0 (0.0) 11 (31.4)
Question 15 3.5 1.0 0 (0.0) 6 (17.4)
Question 16 3.0 1.0 2 (5.7) 1 (2.9)
Question 17 3.5 0.9 1 (2.9) 2 (5.7)
Question 18 3.5 1.2 3 (8.6) 3 (8.6)
Question 19 4.5 1.0 0 (0.0) 16 (45.7)
Question 20 5.0 0.8 0 (0.0) 31 (88.6)
Question 21 4.5 1.0 0 (0.0) 17 (48.6)
Question 22 5.0 0.6 0 (0.0) 26 (74.3)
Question 23 4.5 0.9 0 (0.0) 16 (45.7)
Question 24 4.0 1.0 0 (0.0) 9 (25.7)
Question 25 4.0 1.0 0 (0.0) 10 (28.6)
Question 26 4.5 0.9 0 (0.0) 15 (42.9)
Question 27 3.5 1.4 3 (8.6) 11 (31.4)
Question 28 5.0 1.1 2 (5.7) 18 (51.4)
Question 29 3.0 1.1 3 (8.6) 2 (5.7)
Question 30 3.5 1.4 2 (5.7) 9 (25.7)
Question 31 5.0 0.7 0 (0.0) 24 (68.6)
Question 32 4.5 1.2 2 (5.7) 15 (42.9)
Question 33 4.0 1.1 1 (2.9) 14 (40.0)
Question 34 1.0 1.0 22 (62.9) 1 (2.9)