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Table 2 Data sources, data analysis and quality control methods used

From: Facilitators and barriers to effective scale-up of an evidence-based multilevel HIV prevention intervention

Data source Topics noted Quality control Methodological approach
Semi-structured telephone interviews (N = 647)   Interviewer: For both sources of data:
  • How each core element is being implemented • Trained to take extensive notes, including key verbatim phrases to record content of each interview • Investigators regularly reviewed interviewer’s and TA providers’ interview summaries and field notes
  • Adaptations made to the core elements • Cleaned each summary note, making sure team had data on each relevant topic in interview guide • Bi-weekly meetings addressed TA and field notes
  • Rationale for adaptation • Indicated verbatim phrases • Discussions focused on barriers and facilitators to effective implementation, as well as how to address them in TA
  • Problems encountered in implementation • Ensured accurate record of interview content and interview conditions (i.e., level of rapport, apparent distractions, general level of flow for each interview) • Field notes, summaries, and analytical codes applied to relevant sections of each summary note were entered into qualitative database
  • Approaches used to overcome challenges   
Extensive field notes and commentary   TA providers:  
  • Barriers and facilitators to implementation fidelity • Had been coordinators in prior efficacy trials, and were extensively trained and supervised in previous research  
  • Problems encountered in implementation • Thus had clear understanding of fidelity to original implementation methods  
  • Approaches used to overcome challenges • Jotted extensive notes during all TA sessions (delivered by telephone and/or e-mail)  
   • Subsequently created detailed commentary about each TA session, operationalized as fieldnotes  
   • Were trained on the study domains (barriers and facilitators to intervention fidelity) to ensure recording of relevant data when topics of interest arose during TA  
   • Used template for TA fieldnotes, which contained headings for each relevant study topic where notes were taken