Table 13

Analysis of Reliability and Validity Applying a Similar Survey in Colombia

				Enumerator Assigned (Test-Retest Correlation)
	Test-Retest Correlation	Cronbach’s Alpha of Test	# of Items	Same	Different	R² of Enum. FE	Acquiescence Bias
Naive score
Cognitive	0.78	0.62	6	0.75	0.75	0.04
Noncognitive	0.70	0.70	15	0.73	0.67	0.04	0.37
Technical	0.50	0.33	7	0.51	0.50	0.13
Improved score
Cog. (IRT and factor)	0.94	0.81	6	0.94	0.93	0.05
Noncognitive (factor)	0.64	0.69	7	0.66	0.61	0.04
Technical (IRT)	0.62		1	0.66	0.58	0.21