Table 2.

Comparison of Quantitative and Qualitative Purpose, Sampling Procedures, Data Collection, and Data Management

QuantitativeQualitative
PurposeTo reveal the statistical differences before and after an intervention to affect the ratesPreintervention: to design interventions
Postintervention: to explain the outcomes and identify further barriers
Sampling proceduresParticipantsChildren aged 0 to 6 years receiving MedicaidLOPIR members, FHC staff
SiteUPMC Shadyside FHC
Sample sizePreintervention = 183; Postintervention = 151Preintervention and postintervention = 12 (9 physicians including 6 residents and 3 attending physicians, 2 nurses and 1 administrative manager)
Intent of samplingProbabilistic (all patients available during the period)Purposeful (Part of the LOPIR project)
Data collectionType of dataRetrospective data collection (Chart reviews)Open-ended with 22 group interviews and 3 key informant interviews as part of the LOPIR process
Data managementRecording methodsData were extracted from EHRs and uploaded into the R softwareField notes and observations recorded by handwritten notes
  • LOPIR, Longitudinal outpatient practice improvement rotation; UPMC, University of Pittsburgh Medical Center; FHC, Family Health Center; EHRs, electronic health records.