Table 1.

The results of concordance testing for POS with variable criterion values for success ranging from 50 or greater to 90% or greater (rows) versus visual ability (Goals) and reading function (Reading) AI change score criteria for a successful outcome ranging from 0.2 logit or greater to 1.2 logit or greater (columns). Each cell of the matrix contains a kappa value. None of the combinations of criteria for POS scores or AI change scores was significantly different from zero.

Kappa
				Goals AI
		0.2	0.4	0.6	0.8	1.0	1.2
POS	50%	0.064724	−0.07991	−0.11384	−0.9309	−0.0674	−0.07707
	60%	0.002761	−0.10565	−0.1187	−0.11403	−0.08908	−0.11206
	70%	−0.00237	−0.05491	−0.08239	−0.07078	−0.03837	−0.0801
	80%	0.011474	0.000909	−0.01126	−0.00865	0.036382	−0.02422
	90%	−0.01821	0.000361	0.007021	−0.04241	−0.02119	−0.08099
				Reading AI
		0.2	0.4	0.6	0.8	1.0	1.2
POS	50%	−0.04452	−0.0796	−0.06422	−0.03391	−0.01767	−0.00542
	60%	−0.0618	−0.08606	−0.07407	−0.04312	−0.01733	−0.01121
	70%	−0.03493	−0.06933	−0.07836	−0.04833	−0.00092	−0.00248
	80%	0.048898	0.013536	0.0272	0.006893	0.001394	0.001583
	90%	0.032501	−0.02013	−0.03693	−0.06365	−0.01757	−0.02215