Table 1. Nominal rate of empirical type 1 error rates for SCAMPI.

The empirical type I error rates for SCAMPI at nominal rates $\alpha$ of 10⁻² and 10⁻³ in 100,000 simulations with 300,000 observations. The result is presented across a range of conditions including varying Minor Allele Frequencies (MAF), numbers of phenotypes $\left(J\right)$, and covariance of the phenotypes $\Sigma$ when $\gamma$ is simulated from a uniform distribution between 0 and 0.3. The value presented in the ‘LEQ 0.01’ and ‘LEQ 0.001’ columns reflect the pre-specified nominal error rates.

N	MAF	$\sum$	$J$	LEQ 0.01	LEQ 0.001
3.00E+05	0.05	0.01	2	9.56E-03	1.01E-03
			4	1.00E-02	1.18E-03
			8	1.05E-02	1.13E-03
3.00E+05	0.05	0.25	2	9.96E-03	1.09E-03
			4	1.09E-02	9.30E-04
			8	1.12E-02	1.01E-03
3.00E+05	0.05	0.5	2	1.05E-02	1.16E-03
			4	1.16E-02	1.02E-03
			8	1.26E-02	1.23E-03
3.00E+05	0.25	0.01	2	9.51E-03	1.17E-03
			4	1.03E-02	1.13E-03
			8	1.00E-02	1.14E-03
3.00E+05	0.25	0.25	2	1.01E-02	1.12E-03
			4	1.09E-02	1.06E-03
			8	1.09E-02	9.40E-04
3.00E+05	0.25	0.5	2	1.03E-02	9.80E-04
			4	1.09E-02	1.03E-03
			8	1.28E-02	1.09E-03