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. 2021 Apr 1;49(9):1241–1257. doi: 10.1007/s10802-021-00817-w

Table 2.

Rank-ordered item-total correlations and item-discrimination indices for the RCADS-C items

Item-anxiety/depression diagnosis correlation
Item number Item (RCADS Subscale) Item-total Total Controlled for Gender Controlled for age
Anxiety items
RCADS35a,b I worry about what is going to happen (GAD) 0.76* 0.38* 0.35* 0.37*
RCADS28a,b When I have a problem, I feel shaky (PD) 0.72* 0.32* 0.28* 0.31*
RCADS41a,b I worry that I will suddenly get a scared feeling when there is nothing to be afraid of (PD) 0.71* 0.31* 0.27* 0.29*
RCADS22a,b I worry that bad things will happen to me (GAD) 0.71* 0.26* 0.24* 0.27*
RCADS24a,b When I have a problem, my heart beats really fast (PD) 0.71* 0.36* 0.32* 0.35*
RCADS20a,b I worry I might look foolish (SOC) 0.71* 0.35* 0.31* 0.33*
RCADS34a,b All of a sudden I feel really scared for no reason at all (PD) 0.71* 0.37* 0.33* 0.36*
RCADS1a,b I worry about things (GAD) 0.71* 0.31* 0.28* 0.30*
RCADS43b I feel afraid that I will make a fool of myself in front of people (SOC) 0.68* 0.27* 0.24* 0.26*
RCADS14b I suddenly feel as if I can't breathe when there is no reason for this (PD) 0.68* 0.27* 0.24* 0.26*
RCADS27b I worry that something bad will happen to me (GAD) 0.68* 0.25* 0.23* 0.25*
RCADS30b I worry about making mistakes (SOC) 0.67* 0.25* 0.22* 0.24*
RCADS12b I worry that I will do badly at my school work (SOC) 0.65* 0.26* 0.22* 0.24*
RCADS32 I worry what other people think of me (SOC) 0.64* 0.28* 0.24* 0.27*
RCADS7b I feel scared when I have to take a test (SOC) 0.64* 0.26* 0.22* 0.24*
RCADS39b My heart suddenly starts to beat too quickly for no reason (PD) 0.64* 0.26* 0.23* 0.25*
RCADS26 I suddenly start to tremble or shake when there is no reason for this (PD) 0.63* 0.27* 0.24* 0.26*
RCADS8b I feel worried when I think someone is angry with me (SOC) 0.62* 0.26* 0.22* 0.25*
RCADS3a,b When I have a problem, I get a funny feeling in my stomach (PD) 0.61* 0.30* 0.26* 0.29*
RCADS18a,b I have trouble going to school in the mornings because I feel nervous or afraid (SEP) 0.61* 0.47* 0.45* 0.47*
RCADS4b I worry when I think I have done poorly at something (SOC) 0.61* 0.20* 0.17* 0.17*
RCADS45a,b I worry when I go to bed at night (SEP) 0.61* 0.41* 0.38* 0.41*
RCADS33a,b I am afraid of being in crowded places (like shopping centres, the cinema, buses, busy playgrounds) (SEP) 0.60* 0.31* 0.28* 0.30*
RCADS36 I suddenly become dizzy or faint when there is no reason for this (PD) 0.55* 0.20* 0.16* 0.19*
RCADS13 I worry that something awful will happen to someone in my family (GAD) 0.54* 0.07 0.02 0.07
RCADS38b I feel afraid if I have to talk in front of my class (SOC) 0.53* 0.22* 0.18* 0.21*
RCADS37 I think about death (GAD) 0.51* 0.14* 0.12* 0.14*
RCADS46b I would feel scared if I had to stay away from home overnight (SEP) 0.48* 0.26* 0.24* 0.28*
RCADS9 I worry about being away from my parents (SEP) 0.48* 0.10 0.07 0.12
RCADS5 I would feel afraid of being on my own at home (SEP) 0.47* 0.25* 0.22* 0.26*
RCADS17 I feel scared if I have to sleep on my own (SEP) 0.41* 0.18* 0.15* 0.20*
Depression items
RCADS29a,b I feel worthless (MDD) 0.81* 0.40* 0.39* 0.38*
RCADS19a,b I have no energy for things (MDD) 0.80* 0.44* 0.43* 0.40*
RCADS40a,b I feel like I don’t want to move (MDD) 0.79* 0.35* 0.33* 0.32*
RCADS2a,b I feel sad or empty (MDD) 0.77* 0.40* 0.39* 0.36*
RCADS21a,b I am tired a lot (MDD) 0.75* 0.40* 0.39* 0.35*
RCADS47a I feel restless (MDD) 0.75* 0.31* 0.30* 0.28*
RCADS6a,b Nothing is much fun anymore (MDD) 0.73* 0.41* 0.41* 0.38*
RCADS25a,b I cannot think clearly (MDD) 0.73* 0.29* 0.28* 0.27*
RCADS11b I have trouble sleeping (MDD) 0.64* 0.28* 0.26* 0.28*
RCADS15a I have problems with my appetite (MDD) 0.64* 0.31* 0.30* 0.29*

GAD generalised anxiety disorder, PD panic disorder, SOC social anxiety disorder, SEP separation anxiety disorder

aItem retained in the reduced pool of eligible adolescent-report anxiety items

bItem retained in the reduced pool of eligible parent-report anxiety items

*p < 0.01