Table 2.

Internal consistency reliability and item-to-total correlation reliability

	Cronbach’s Alpha	Pearson’s Correlation
Symptoms of Hyperphagia: Caregiver (Observer)	0.40
Try to negotiate or argue for more food than provided		0.510*
Eat extremely quickly		0.514*
Sneak or take food without permission		0.521*
Wake up asking or looking for food during the night		0.555*
Ask for more food after just finishing a meal or snack		0.610*
Impacts of Hyperphagia: Caregiver (Observer)	0.66
Sleep		0.647*
Mood or emotions		0.636*
School		0.603*
Leisure or recreational activities		0.671*
Relationships with family or friends		0.685*
Impacts of Hyperphagia: Caregiver (Self)	0.72
Sleep		0.666*
Mood or emotions		0.630*
Work		0.717*
Leisure or recreational activities		0.711*
Relationships with family or friends		0.719*