. 2017 Nov 13;5:e4009. doi: 10.7717/peerj.4009

Table 1. Effect-size indices for each shock intensity.

Effect-size indices (Tau-U) for each shock intensity (0.5 mA and 1.0 mA) per subject and for each measure of interest (% of session time on platform, % of session time freezing, and step-down rate).

			Subject
			S1	S2	S3	S4
% session time on platform	0.5 mA	Tau-U	.8290^#	1.1497^*	1.1846^*	.7194^#
	0.5 mA	p	<.0001	<.0001	<.0001	.0002
	1.0 mA	Tau-U	1.2779^*	1.1649^*	1.2324^*	.8114^#
	1.0 mA	p	<.0001	<.0001	<.0001	.0002
% session time freezing	0.5 mA	Tau-U	.8905^#	.4686⁺	.8377^#	.5686⁺
	0.5 mA	p	<.0001	.0346	<.0001	.0035
	1.0 mA	Tau-U	.8928^#	1.1206^*	1.3031^*	0.8411^#
	1.0 mA	p	<.0001	<.0001	<.0001	.0001
Step-down rate	0.5 mA	Tau-U	.0662⁺	.7417^#	.8838^#	.2041⁺
	0.5 mA	p	.7390	.0008	<.0001	.2938
	1.0 mA	Tau-U	.7013^#	.7949^#	.8957^#	.9630^*
	1.0 mA	p	.0005	.0001	<.0001	<.0001

Notes.

Note: Tau-U scores for each intensity (0.5 mA and 1.0 mA) correspond to weighted averages of the two corresponding treatment conditions (i.e., omnibus effect size). See ‘Design’ in ‘Method’ section.

⁺

low effect.

medium-high effect.

large effect.