Development and evaluation of a tool for the assessment of footwear characteristics

Table 5 Inter-rater reliability for categorical measures.

	% agreement		Kappa
Variable	Day 1	Day 2	Day 1	Day 2
Fit
Adequate length (palpation)	88	83	0.59	0.66
Adequate length (straw method)	97	90	0.93	0.79
Adequate width	92	97	0.68	0.82
Adequate depth	97	93	0.78	0.00*
General
Age of shoe	100	100	1.00	1.00
Type of shoe	98	98	0.93	0.93
Upper materials	95	93	0.87	0.82
Outsole materials	100	97	1.00	0.65
General structure
Heel height	95	92	0.83	0.71
Forefoot height	93	93	0.76	0.77
Longitudinal profile	95	83	0.81	0.51
Last shape	98	100	0.79	1.00
Fixation (Outersole to midsole)	85	90	0.70	0.80
Sole flexion point	97	97	0.82	0.83
Motion control properties
Dual density presence	100	100	1.00	1.00
Fixation (upper to foot)	85	90	1.00	0.93
Heel counter stiffness	93	96	0.81	0.86
Midfoot sagittal stability	88	95	0.69	0.87
Midfoot torsional stability	89	93	0.84	0.83
Cushioning
Cushioning system presence	95	95	0.84	0.83
Lateral/medial midsole hardness	92	94	0.76	0.80
Heel-foot contact hardness	95	95	0.87	0.86
Wear patterns
Upper wear pattern	97	93	0.73	-0.03*
Midsole wear pattern	100	100	1.00	1.00
Tread pattern	100	100	1.00	1.00
Tread wear	100	100	1.00	1.00
Outsole wear pattern	93	92	0.63	0.38*

ISSN: 1757-1146