Development of Estimating Equation of Machine Operational Skill by Utilizing Eye Movement Measurement and Analysis of Stress and Fatigue

Table 4

Slopes of the regression lines and correlation coefficients in relation concerning HR.

	Operator
	A	B	C	D	E	F	G
Trial/HR
Slope	−1.22	−0.43	−0.50	−1.20	−0.26	−0.29	0.42
c.c.	−0.95	−0.70	−0.57	−0.98	−0.44	−0.72	0.43
𝑇-index/HR
Slope	0.010	0.002	0.004	0.031	0.009	0.003	−0.030
c.c.*	0.77	0.84	0.59	0.97	0.68	0.65	−0.39

c.c.: correlation coefficient.
*Mean: 0.75; S.D.: 0.140338 (except G).