Table I.

Emotional Distress Measures Item Statistics

	Wave 1				Wave 2
	Mean	SD	% floor (never)	% ceiling (always)	Mean			SD		% floor (never)	% ceiling (always)
Anger/irritability
My child broke or destroyed things during a temper tantruma	1.72	0.97	56.00	1.71		1.40	0.70		70.86			0.28
My child became frustrated easilya	2.32	0.95	20.29	2.71		2.43	0.86		15.14			1.32
My child had a temper tantruma	2.43	0.94	16.86	2.17		2.48	0.86		16.27			1.32
My child lost his/her temper or had a temper tantrum when interacting with me or other parenta	2.18	0.99	30.43	2.00		2.26	0.86		21.19			0.95
My child acted cranky	2.62	0.79	9.86	1.71		2.54	0.76		11.26			0.76
My child became angry quickly	2.04	1.00	35.86	2.29		2.26	0.88		23.33			0.95
My child stayed angry for a long time	1.60	0.87	59.29	1.29		1.49	0.70		60.26			0.28
My child lost his/her temper or had a temper tantrum when out in public	1.85	0.95	45.57	1.71		1.74	0.82		47.59			0.38
My child got mad	2.67	0.85	10.14	2.71
My child had a temper tantrum when upset or angry	2.60	1.07	17.29	4.86
My child screamed angrily at someone	2.19	1.03	31.29	2.43
My child screamed loudly when frustrated	2.57	1.06	18.57	4.86
When my child got mad, he/she stayed mad	1.79	0.86	43.43	1.14
My child lost his/her temper	2.19	0.97	28.00	1.86
My child had a hot/explosive temper	1.81	1.01	52.29	1.71
My child had a temper tantrum till exhausted	1.67	0.93	58.00	1.29
Anxiety
My child seemed scared or fearfula	1.78	0.92	47.43	1.57		1.56	0.70		55.72			0.09
My child seemed nervousa	1.72	0.93	53.57	1.43		1.48	0.70		62.44			0.19
My child seemed fearful or worried when out in publica	1.55	0.88	64.71	1.43		1.44	0.67		64.90			0.19
My child was inconsolable when separating from me or other parent in a familiar settinga	1.78	1.00	53.57	1.86		1.52	0.77		62.72			0.38
My child seemed worried	1.67	0.93	57.29	1.71		1.48	0.69		61.68			0.09
My child seemed tense	1.53	0.86	65.86	0.86		1.54	0.69		57.14			0.09
My child was fearful or worried at bedtime	1.52	0.84	66.14	0.71		1.43	0.69		68.12			0.19
My child seemed fearful or worried at daycare, school, or other familiar settings	1.48	0.86	70.14	1.14		1.46	0.72		65.37			0.19
My child got scared really easy	1.88	0.94	44.00	1.14
My child talked about something really bad happening	1.62	0.93	62.00	0.86
My child worried about what could happen to him/her	1.62	0.93	62.00	1.43
My child woke up at night scared	1.72	0.94	54.86	1.00
My child seemed fearful or worried at home	1.45	0.81	70.14	0.71
My child froze because he/she was so scared	1.47	0.83	69.29	1.00
Depressive symptoms
My child seemed sada	1.80	0.87	42.57	1.43		1.45	0.65		62.72			0.09
My child was withdrawna	1.55	0.91	65.71	1.86		1.34	0.65		73.89			0.38
My child wasn't interested in doing things he/she usually likesa	1.69	0.98	56.67	2.71		1.30	0.60		75.97			0.47
My child acted sad during fun activitiesa	1.44	0.79	70.71	0.86		1.45	0.64		62.44			0.09
My child kept crying even when I or other parent tried to comfort him/her	1.85	0.98	45.86	2.43		1.54	0.75		59.98			0.38
My child had a hard time having fun	1.44	0.82	71.29	0.86		1.30	0.56		74.65			0.19
My child seemed too sad to eat	1.31	0.73	80.00	0.71		1.20	0.49		83.54			0.09
My child acted withdrawn when in a group of children	1.54	0.92	66.86	1.86		1.42	0.73		69.82			0.47
My child seemed uninterested in eating food he/she usually likes	1.66	0.93	58.71	1.29
My child said negative things about him/herself	1.55	0.91	66.29	0.86

Note. Bold = 8-item short form; all items used a 5-point Likert response scale: 1 (Never), 2 (Almost Never), 3 (Sometimes), 4 (Almost Always), and 5 (Always).

^a4-item short form.