Table IV.

Correlation Matrix of PROMIS EC Domains

Domains	Global	Phys. Act.	Sleepa	Anx.a	Ang./Irr.a	Dep. Symp.a	Pos. Aff.a	Engage.—Cur.	Engage.—Per.	Self-Reg.—Flex.	Self-Reg.—Frus. Tol.	Soc. Rel.b
Global Health	1.00
Physical Activity	0.08	1.00
Sleep Problemsa	−0.27	0.11	1.00
Anxietya	−0.32	0.10	0.47	1.00
Anger/Irritabilitya	−0.33	0.07	0.52	0.43	1.00
Depressive Symptomsa	−0.36	0.09	0.42	0.56	0.42	1.00
Positive Affecta	0.41	0.11	−0.27	−0.32	−0.29	−0.41	1.00
Engagement—Curiosity	0.42	0.18	−0.16	−0.24	−0.18	−0.32	0.50	1.00
Engagement—Persistence	0.38	0.15	−0.22	−0.22	−0.29	−0.25	0.37	0.53	1.00
Self-Regulation—Flexibility	0.41	0.12	−0.33	−0.32	−0.36	−0.32	0.41	0.49	0.55	1.00
Self-Regulation—Frustration Tolerance	0.37	0.16	−0.32	−0.23	−0.45	−0.26	0.37	0.41	0.58	0.63	1.00
Social Relationshipsb	0.46	0.11	−0.25	−0.31	−0.27	−0.39	0.53	0.53	0.50	0.50	0.43	1.00

Note. Global=Global Health; Phys. Act.=Physical Activity; Sleep=Sleep Problems; Ang./Irr.=Anger/Irritability; Dep. Symp.=Depressive Symptoms; Pos. Aff.=Positive Affect; Engage. - Cur.=Engagement—Curiosity; Engage. - Per.=Engagement—Persistence; Self-Reg.- Flex.=Self-Regulation—Flexibility; Self-Reg.- Frus. Tol.=Self-Regulation—Frustration Tolerance; Soc. Rel.=Social Relationships.

^a8-item short form.

^b6-item short form, which includes two items from each subdomain.