. 2015 Jul 29;21(3):241–249. doi: 10.1310/sci2103-241

Table 2. Analysis of validity studies.

Study (year)	Psychometric property	Sample size, n	Study population, n	Examiners	Outcome measures	Results	Version of ISNCSCI standards
Bednarczyk & Sanderson²³ (1993)	Construct validity (wheelchair basketball sports, Bracken scale)	30	Chronic SCI: Tetraplegia, 9 Paraplegia, 21	Not specified (physiotherapist experienced in medical and functional assessment techniques)	Spearman’s rho correlation coefficients	Spearman’s rho correlation coefficients showed positive associations between the ISNCSCI and basketball sports test (0.81)	1990
Curt & Dietz²² (1997)	Construct validity (SSEP)	104	Acute SCI: Tetraplegia, 31 Paraplegia, 39 Chronic SCI: Tetraplegia, 34	Not specified (specially trained physicians with >1 yr experience)	Spearman’s rank correlation coefficients and ANOVA	In acute SCI, ISNCSCI scores and SSEP are significantly related to the outcome of ambulation (P < .001).	1992
Kalsi-Ryan et al²¹ (2012)	Construct validity (GRASSP)	72	Chronic tetraplegia, 72	14 (10 occupational therapists; 2 physiotherapists)	Agreement/ discordance analysis	Average 54% discordance in ISNCSCI sensory innervation was recognised.	2000

Note: ANOVA = analysis of variance: ASIA = American Spinal Cord Injury Association; GRASSP = Graded Redefined Assessment of Strength, Sensibility and Prehension; ISNCSCI = International Standards for Neurological Classification of Spinal Cord Injury; SCI = spinal cord injury; SSEP = somatosensory-evoked potentials.