Table 1 Partial correlation results between general intelligence and global brain metrics.

Data set	Global efficiency		Global clustering		Small-world propensity
Data set	r	p	r	p	r	p
HCP_day_1	− 0.01	0.846	0.02	0.503	0.02	0.548
HCP_day_1_ses_1	− 0.01	0.631	0.07	0.023	0.04	0.221
HCP_day_1_ses_2	− 0.03	0.370	0.03	0.303	0.02	0.614
HCP_day_2	− 0.03	0.284	0.01	0.799	0.01	0.720
HCP_day_1_day_2	− 0.02	0.543	0.01	0.768	0.01	0.835
NKI_TR645	− 0.05	0.353	0.11	0.030	− 0.01	0.823
NKI_TR1400	− 0.00	0.972	0.11	0.049	0.00	0.940
NKI_TR2500	− 0.04	0.410	0.05	0.373	0.04	0.474
RUB	0.00	0.962	0.07	0.068	0.02	0.707
UMN	0.10	0.108	0.04	0.542	0.08	0.198

Partial correlations between general intelligence and global efficiency, global clustering, and small-world propensity. Control variables were age, sex, age*sex, age², age²*sex, handedness, total brain volume, and head motion. p-values < 0.05 are in boldface.

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