Table 1.

Inter-rater reliability coefficients for actometry variables in 99 in-patients with schizophrenia: kappa for categorical and ICC coefficients for continuous measures.

	kappa
presence of activity periods	0.905*
presence of rhythmical activity	0.786*
	ICC (95% CI)
amount of activity periods	0.967 (0.951–0.978)*
dominant frequency	0.739 (0.624–0.822)*
second prevalent frequency	0.787 (0.672–0.864)*
third prevalent frequency	0.789 (0.672–0.867)*
minimal frequency	0.351 (0.149–0.525)#
maximal frequency	0.831 (0.750–0.887)*
highest value of acceleration peaks	0.841 (0.768–0.893)*

* p < 0.001

# p = 0.001