Table 4.

Correlation between all measures of Luria-Nebraska Neuropsychological Battery-I and positive and negative symptoms of schizophrenia

LNNB-I scales	Positive symptoms correlation value (R)	Negative symptoms correlation value (R)
Motor function (C1)	0.613**	0.649**
Rhythm function (C2)	0.537**	0.378*
Tactile function (C3)	0.567**	0.350
Visual function (C4)	0.225	0.379*
Receptive function (C5)	0.537**	0.378*
Expressive function (C6)	0.236	0.745**
Writing (C7)	0.273	0.690**
Reading (C8)	0.693**	0.293
Arithmetic (C9)	0.548**	0.429*
Memory function (C10)	0.444*	0.492**
Intellectual function (C11)	0.495**	0.692**

*Correlation is significant at level 0.05, **Correlation is significant at level 0.01. LNNB-I – Luria-Nebraska Neuropsychological Battery-I