TABLE 3.

Convergent and Divergent Validity of the Columbia–Suicide Severity Rating Scale (C-SSRS) Severity and Intensity of Ideation Subscales Compared With the Beck Depression Inventory (BDI) and the Montgomery-Åsberg Depression Rating Scale (MADRS), Based on Data From Study 1

Measure	C-SSRS Subscale
	Severity of Ideation: Most Severe Ideation Since Last Assessmenta				Intensity of Ideation: Most Severe Ideation Since Last Assessment, Total Scoreb
	r	dc	beta	z	r	dc	beta	z
BDI
Loss of energy	0.403†	0.881	0.605†	4.62†	0.309†	0.650	1.433**	3.891†
Sleep disturbance	0.267†	0.554	0.278**	6.54†	0.306†	0.643	1.548***	3.65***
Appetite disturbance	0.215†	0.440	0.207*	7.31†	0.263†	0.545	1.304**	4.31†
Fatigue	0.342†	0.728	0.451†	5.66†	0.308†	0.647	1.277**	3.83†
Suicidal ideation	0.627†	1.610	1.278†		0.510†	1.186	3.605†
MADRS
Decreased sleep	0.177†	0.360	0.059†	19.63†	0.199†	0.406	0.126*	14.78†
Decreased hunger	0.044	0.088	0.072*	20.85†	0.090**	0.181	0.365***	16.01†
Increased sleep	0.021	0.042	−0.008	20.78†	0.041	0.082	0.057	16.70†
Increased hunger	0.042	0.084	0.006	20.38†	0.054	0.108	0.08	16.47†
Lassitude	0.234†	0.481	0.120†	20.86†	0.323†	0.683	0.318	13.28†
Suicide item	0.799†	2.657	1.278†		0.694†	1.928	1.408†

^aBDI data were available for 341 pairs, and MADRS data for 970 pairs.

^bBDI data were available for 346 pairs, and MADRS data for 971 pairs.

^cCohen’s d; <0.3=small effect; 0.5=medium effect; >0.8=large effect.

^*p<0.05.

^**p<0.01.

^***p<0.001.

^†p<0.0001.