Table 3 Reliability properties of the international Hip Outcome Tool (12 items) - Greek version

Internal consistency

(n = 124)

Cronbach’s alpha

Factor-1

0.892

Factor-2

0.865

iHOT12-Gr-total^a

0.907

Test-retest reliability

(n = 50)

p-value

Factor-1

< 0.001

Factor-2

< 0.001

iHOT12-Gr-total^a

< 0.001

p-value

Initial assessment

Re-assessment

Factor-1

42.51 ± 23.52^d

43.40 ± 23.50^d

0.232

Factor-2

33.50 ± 34.62^d

33.63 ± 34.51^d

0.865

iHOT12-Gr-total^a

40.26 ± 23.94^d

40.96 ± 24.12^d

0.282

Interpretability/Repeatability

(n = 124)

Standard error of measurement

Factor-1

3.72

Factor-2

3.64

iHOT12-Gr-total^a

3.22