Skip to main content

Table 3 Intraclass correlation coefficient (ICC), mean difference between repeated measures, limits of agreement (LoA), and standard error of measurement (SEM) including systematic differences between repeated measures and error variance

From: Development of the “Treatment beliefs in knee and hip OsteoArthritis (TOA)” questionnaire

Module Subscale ICC Mean difference LoA SEM
Physical activity positive
9 items
.88 −.44 −7.65; 6.78 .06
negative
4 items
.74 .81 −4.60; 6.23 .10
Pain medication positive
5 items
.80 .19 −6.44; 6.82 .09
negative
7 items
.83 .59 −6.82; 8.00 .08
Physiotherapy positive
6 items
.88 .16 −6.35; 6.67 .08
negative
3 items
.72 −0.40 −4.81; 4.01 .11
Injections positive
6 items
.88 0.05 −5.85; 5.96 .07
negative
6 items
.83 .45 −5.06; 5.96 .07
Arthroplasty positive
8 items
.66 −.20 −9.14; 8.75 .08
negative
6 items
.77 .45 −5.52; 6.41 .07