Reliability and validity of the Preterm Infant Feeding Survey: instrument development and testing.

No instruments have been located that examine attitudes concerning feeding decisions of mothers of preterm infants. The purpose of this study was to describe the development and psychometric testing of the Preterm Infant Feeding Survey (PIFS). The PIFS was adapted from the Breastfeeding Attrition Prediction Scale. The five-subscale, 78-item PIFS was tested with 105 mothers of preterm infants shortly after hospital admission. Individual subscale Cronbach's alpha values ranged from .75 to .82. Factor analysis demonstrated a five-factor solution. The PIFS is the first instrument to examine factors that contribute to feeding decisions of mothers of high-risk preterm infants; this knowledge will support the planning of interventions to improve breastfeeding outcomes for this population. Further psychometric testing with larger samples is recommended.