Skip to main content

Table 3 Intraclass correlation coefficients for study participants

From: Introduction of a digital near-vision reading test for normal and low vision adults: development and validation

Parameter

NVG

LVG

Total

ICC

95% CI

ICC

95% CI

ICC

95% CI

RA

0.963

[0.940, 0.977]

0.986

[0.969, 0.993]

0.993

[0.990, 0.996]

MRS

0.879

[0.718, 0.939]

0.794

[0.565, 0.902]

0.951

[0.917, 0.970]

CPS

0.854

[0.766, 0.910]

0.723

[0.425, 0.867]

0.955

[0.933, 0.970]

ACC

0.928

[0.819, 0.965]

0.894

[0.779, 0.950]

0.977

[0.962, 0.985]

  1. [ICCs: two-way mixed, average measures, absolute agreement]
  2. ACC = reading accessibility index; CI = confidence interval; CPS = critical print size; ICC = intraclass correlation coefficient; LVG = low vision group; MRS = maximum reading speed; NVG = normal vision group; RA = reading acuity