Adaptation of the INTERGROWTH-21st neurodevelopment assessment (INTER-NDA) to the context of the English-speaking Caribbean

Table 5 Reliability assessments

INTER-NDA Subscale	Inter-rater Reliability	Test-retest Reliability	Agreement between non-specialist assessors and expert
	κ	95% CI	κ	95% CI	κ	95% CI
Cognition	1.00	–	0.97	[0.76, 1.00]	0.96	[0.71, 1.00]
Language	0.99	[0.98, 0.99]	0.81	[0.61, 1.00]	1.00	–
Gross Motor	1.00	–	1.00	–	0.94	[0.58, 1.00]
Fine Motor	1.00	–	0.94	[0.56, 1.00]	1.00	–
Positive Behavior	0.99	[0.98, 0.99]	1.00	–	0.92	[0.59, 1.00]
Negative Behavior	1.00	–	0.81	[0.33, 1.00]	κ	95% CI
Total INTER-NDA	0.99	[0.98, 0.99]	0.86	[0.74, 1.00]	0.90	[0.64, 1.00]

κ = kappa coefficient, CI = confidence interval, CIs not reported for domains that show perfect agreement (κ = 1.00)

ISSN: 1471-2431