Table 3.

Parameter estimates and statistics for quadratic regressions predicting performance error for SD 5

					95% Confidence Interval
	β	SE	t(24)	P	Lower bound	Upper bound
ν	0.100	0.129	0.778	0.444	−0.166	0.367
η	0.212	0.202	1.050	0.304	−0.205	0.630
α1	−0.084	0.209	−0.402	0.691	−0.514	0.347
ν2	0.291	0.158	1.837	0.079	−0.036	0.617
η2	0.437	0.147	2.973	0.007	0.134	0.740
${\alpha }_1^2$	−0.009	0.157	−0.060	0.952	−0.333	0.314
Intercept	−0.695	0.278	−2.501	0.020	−1.268	−0.121

Fitted model: F(6,24) = 7.269, P = 0.000, R² adjusted = 0.556.