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Validity And Reliability Of The Antepartum Gastrointestinal Symptom Assessment Instrument, Lisa Hanson, Leona Vandevusse, Mauricio Garnier-Villarreal, Donna O. Mccarthy, Teresa Jerofke-Owen, Emily Malloy, Heidi Paquette
Validity And Reliability Of The Antepartum Gastrointestinal Symptom Assessment Instrument, Lisa Hanson, Leona Vandevusse, Mauricio Garnier-Villarreal, Donna O. Mccarthy, Teresa Jerofke-Owen, Emily Malloy, Heidi Paquette
College of Nursing Faculty Research and Publications
Objective
To examine the psychometric properties of the nine-item Antepartum Gastrointestinal Symptom Assessment (AP-GI-SA) instrument.
Design
Single-group prospective design.
Setting
Urban prenatal clinic serving a diverse population.
Participants
Convenience sample of 45 pregnant women.
Methods
Participants completed the AP-GI-SA before a scheduled prenatal care appointment. We used Bayesian structural equation modeling to evaluate the construct validity of the scale and assessed known-groups validity. We assessed reliability through maximal reliability coefficient estimate and measured internal consistency with Cronbach’s alpha coefficient.
Results
Participants completed the instrument in 2 minutes or less. Construct validity was supported by confirmatory factor analysis (posterior predictive p …