. Author manuscript; available in PMC: 2014 Jan 31.

Published in final edited form as: Ann Trop Paediatr. 2008 Sep;28(3):217–226. doi: 10.1179/146532808X335679

TABLE 1. Psychometric characteristics of the Kilifi Developmental Inventory.

Statistics	n	Locomotor	Eye–hand	Psychomotor
Maximum possible score		35	34	69
Reliability
Internal consistency (α)	319	0.92	0.93	0.96
Retest reliability (ICC)	41	0.87	0.95	0.96
Inter-observer (ICC)	34	0.92	0.94	0.98
Validity
Gender		t (319) 50.30, ns	t (319) 50.36, ns	t (319) 50.34, ns
Correlation with age	319	0.91^‡	0.92^‡	0.93^‡
Correlation with maternal reports	87	0.84^‡	0.72^‡	0.80^‡
Sensitivity
Neurodevelopmental disorders	113	t (113) 513.34^‡	t (113) 510.66^‡	t (113) 513.05^‡
Underweight	319	t (319) 53.03^†	t (319) 52.45^*	t (319) 53.14^†

SD, standard deviation; ICC, intraclass correlation co-efficient; t, t-test; ns, not significant;

p<0.05,

^†

p<0.01,

^‡

p<0.001.