Table 3.

Standardized factor loading estimates of the configural (unrestricted) model across three age groups as well as the metric (restricted) model

Factor	Item #	Item description	Factor loading
			Configural			Metric
			T1	T2	T3
GAD	1	Worries about things	0.55	0.64	0.67	0.60
GAD	13	Worries something awful will happen to family	0.70	0.75	0.70	0.69
GAD	22a	Worries bad things will happen to self	0.82	0.88	0.83	0.81
GAD	27a	Worries something bad will happen to self	0.80	0.85	0.84	0.80
GAD	35	Worries about what will happen	0.73	0.78	0.80	0.74
GAD	37	Thinks about death	0.59	0.60	0.55	0.56
OCD	10a	Has to do things just right to stop bad events	0.53	0.61	0.57	0.52
OCD	16	Bothered by bad or silly thoughts or images	0.51	0.55	0.60	0.51
OCD	23a	Has to do things over and over again	0.57	0.61	0.59	0.54
OCD	31	Keeps checking if things done right	0.65	0.75	0.75	0.65
OCD	42	Can’t get bad or silly thoughts out of head	0.55	0.61	0.75	0.58
OCD	44	Has to think special thoughts to stop bad events	0.66	0.70	0.82	0.66
PD	3a	When has a problem, stomach feels funny	0.43	0.51	0.54	0.46
PD	14	Suddenly has trouble breathing for no reason	0.63	0.76	0.67	0.64
PD	24a	When has a problem, heart beats really fast	0.53	0.59	0.60	0.53
PD	26	Suddenly trembles or shakes for no reason	0.65	0.71	0.75	0.65
PD	28a	When has a problem, feels shaky	0.54	0.65	0.69	0.57
PD	34	Suddenly feels really scared for no reason	0.68	0.77	0.82	0.69
PD	36	Suddenly becomes dizzy of faint for no reason	0.64	0.70	0.67	0.62
PD	39	Heart suddenly beats too quickly for no reason	0.76	0.79	0.79	0.72
PD	41	Worries will suddenly get scared for no reason	0.65	0.78	0.76	0.67
SA	5a	Fears being alone at home	0.62	0.68	0.67	0.65
SA	9	Fears being away from parents	0.56	0.61	0.61	0.59
SA	17a	Scared to sleep alone	0.71	0.73	0.69	0.71
SA	18	Trouble going to school	0.53	0.64	0.65	0.60
SA	33	Afraid of being in crowded places	0.50	0.60	0.59	0.56
SA	45	Worries in bed at night	0.52	0.53	0.51	0.52
SA	46	Scared to sleep away from home	0.62	0.69	0.75	0.67
SP	4	Worries when does poorly at things	0.57	0.71	0.73	0.68
SP	7a	Scared to take a test	0.39	0.56	0.56	0.51
SP	8	Feels worried when someone angry	0.61	0.69	0.69	0.66
SP	12a	Worries will do badly at school work	0.53	0.67	0.66	0.63
SP	20	Worries might look foolish	0.74	0.80	0.82	0.79
SP	30	Worries about mistakes	0.60	0.73	0.76	0.71
SP	32	Worries what others think	0.73	0.82	0.83	0.80
SP	38	Afraid to talk in front of class	0.49	0.57	0.56	0.54
SP	43	Afraid of looking foolish in front of people	0.76	0.80	0.85	0.81

Note: GAD, generalized anxiety disorder; OCD, obsessive-compulsive disorder; PD, panic disorder; SA, separation anxiety disorder; SP, social phobia.

^aIndicates correlated items within one anxiety subscale.