Translation, data quality, reliability, validity and responsiveness of the Norwegian version of the Effective Musculoskeletal Consumer Scale (EC-17)

Table 5 Mean (SD) scores and responsiveness of the EC-17, BACQ, EAC and GHQ-20 (n = 66)

Instrument	Pre-test	Post-test	Change score	SRM^a
EC-17 ^b	62.55 (15.34)	66.93 (13.37)**	4.39 (9.25)	0.48
EAC processing ^c	2.83 (0.66)	2.93 (0.66)	0.10 (0.52)	0.19
EAC expression	2.76 (0.63)	2.82 (0.57)	0.06 (0.45)	0.13
BACQ Approach^d	3.42 (0.54)	3.54 (0.55)	0.12 (0.46)	0.25
BACQ Avoidance	3.24 (1.04)	3.10 (0.56)	-0.14 (0.93)	0.15
GHQ-20^e	22.94 (9.96)	17.55 (8.89)**	-5.39 (7.15)	0.75

^a SRM standardised response mean = mean change in score divided by the standard deviation of the change in scores.
^b EC-17 is scored from 0 to 100 where 100 is the best possible score.
^c The EAC is scored from 1 to 4 where 4 is the best possible score.
^d The BACQ is scored from 1 to 5 where 5 is the best possible score.
^e GHQ-20 is scored from 0 to 60 where 0 is the best possible score.
Asterisks denote statistical significance: *p < 0.05; **p < 0.01.