Table 1.

Cronbach reliability values for the psychological scales.

Measure	Cronbach α (current study)	Cronbach α – comparison study (reference)
HADS Anxiety	0.84	0.80	Mykletun et al., 2002 [38]
HADS Depression	0.85	0.76
TSK Kinesiophobia beliefs	0.73	0.84	French et al., 2007 [17]
CSQ Catastrophising	0.86	0.85	Harland and Georgieff, 2003 [21]
CSQ Diversion	0.86	0.84
CSQ Reinterpretation	0.83	0.77
CSQ Cognitive coping	0.81	0.75
Pain Self Efficacy	0.95	0.93	Nicholas et al., 2008 [41]
IPQ-R Timeline Acute/chronic	0.91	0.89	Moss-Morris et al., 2002 [36]
IPQ-R Consequences	0.87	0.84
IPQ-R Timeline Cyclical	0.77	0.79
IPQ-R Emotional Representation	0.88	0.88
IPQ-R Illness coherence	0.93	0.87
IPQ-R Personal control	0.74	0.81
IPQ-R Treatment control	0.76	0.80
IPQ-R Psychological Attributions	0.84	0.86
IPQ-R Risk factors	0.70	0.77
IPQ-R Immunity	0.76	0.67
IPQ-R Accident/Chance	0.19	0.23
IPQ-R Symptoms	0.95	Not tested

HADS, Hospital Anxiety and Depression Scale; TSK, Tampa Scale for Kinesiophobia; CSQ, Coping Strategies Questionnaire; IPQ-R, Illness Perception Questionnaire Revised.