. Author manuscript; available in PMC: 2017 Jul 11.

Published in final edited form as: Arch Phys Med Rehabil. 2015 Aug;96(8 Suppl):S235–S244. doi: 10.1016/j.apmr.2014.10.027

Table 2.

Stability of level of effort ratings (N = 1946)

Discipline	Shift	ICC	95% CI
Test-retest^*
OT	AM	.79	.77–.81
PT	AM	.78	.76–.80
ST	AM	.79	.77–.81
OT	PM	.80	.78–.82
PT	PM	.76	.74–.78
ST	PM	.79	.77–.81
Interrater^†
OT/ST	AM	.55	.52–.58
PT/OT	AM	.59	.56–.62
PT/ST	AM	.56	.53–.59
OT/ST	PM	.59	.56–.62
PT/OT	PM	.57	.54–.60
PT/ST	PM	.53	.49–.57

Abbreviation: ICC, intraclass correlation cefficient (1-way, random effects).

Same discipline rated patients' level of effort on consecutive days and within the same shift (either AM or PM).

^†

Different disciplines rated patients' level of effort in consecutive sessions within the same day and shift (either AM or PM); the first-named discipline could be either the first or second of the 2 to treat the patient and rate level of effort.