Table 4.

Factor loadings for items tested in Studies 3 and 4.

			Study 3				Study 4
Item	Origin	# on RED Scale	Single-Factor	LOC	PO	LOS	Single-Factor	LOC	PO	LOS
I feel out of control in the presence of delicious food	Original	1	0.84	0.87			0.82	0.85
When I start eating, I just can’t seem to stop	TFEQ 15	2	0.87	0.92			0.81	0.88
It is difficult for me to leave food on my plate	TFEQ 16	3	0.65	0.67			0.61	0.64
When it comes to foods I love, I have no willpower	Original	4	0.80	0.83			0.86	0.88
I get so hungry that my stomach often seems like a bottomless pit	TFEQ 24	5	0.76		0.79		0.72		0.78
I don’t get full easily	Original	6	0.61		0.63		0.59		0.65
It seems like most of my waking hours are preoccupied by thoughts about eating or not eating	BES	7	0.86			0.90	0.88			0.91
I have days when I can’t seem to think about anything else but food	BES	8	0.83			0.88	0.80			0.84
Food is always on my mind	Original	9	0.83			0.87	0.88			0.91
I feel hungry all the time	TFEQ 39	10	0.80		0.83		0.81		0.89
I can’t stop thinking about eating no matter how hard I try	FCQT 10	11	0.85			0.89	0.83			0.88
I find myself continuing to consume certain foods even though I am no longer hungry	YFAS 2	12	0.76	0.80			0.73	0.78
If food tastes good to me, I eat more than usual	DEBQ 2	13	0.65	0.68			0.62	0.67

Items in italics are items added to the RED-9 to comprise the RED-13. Origin = Scale of item origin; RED label = Number of item on RED Scale; Single-Factor = Loading onto single-factor solution; TFEQ = Three Factor Eating Questionnaire; BES = Binge Eating Scale; Original = Original item; LOC = Loss of control; PO = Preoccupation with food; LOS = Lack of Satiety.