Validation and internal consistency of newly translated spanish questionnaires

Measure	Cronbach’s alpha	Internal consistency*
ASWS-SF	0.77	Acceptable
PISI	0.77	Acceptable
ESS	0.69	Questionable
PROMIS SD	0.88	Good
PROMIS SRI	0.90	Good
SHIP	0.73	Acceptable
API	0.84	Good
NSS	0.92	Excellent
FDI	0.87	Good
PROMIS anxiety	0.91	Excellent
PROMIS depression	0.95	Excellent

Data is formatted as value. *Internal consistency: excellent = 0.91–1.00, good = 0.81–0.90, acceptable = 0.71–0.80, questionable = 0.61–0.70, poor = 0.51–0.60, unacceptable = 0.00–0.50. ASWS-SF: Adolescent Sleep Wake Scale – Short Form, PISI: Pediatric Insomnia Severity Index, ESS: Epworth Sleepiness Scale, PROMIS SD: Patient Reported Outcomes Measurement Information System Sleep Disturbance, PROMIS SRI: Patient Reported Outcomes Measurement Information System Sleep-Related Impairment, SHIP: Sleep Hygiene Inventory for Pediatrics, API: Abdominal Pain Index, NSS: Nausea Severity Scale, FDI: Functional Disability Inventory, PROMIS: Patient Reported Outcomes Measurement Information System.