occupational competency interview study:
🧑🤝🧑 1. How many interviewees are enough in an interview study?
In qualitative research like interviews, the focus is on depth, not quantity. The goal is to reach data saturation—the point where no new insights are emerging.
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General range:
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Small-scale studies: 5–10 interviewees
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Medium studies: 10–20
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Larger or multi-group studies: 20–30+
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🔍 For a focused study on occupational competencies (e.g., in a specific profession), 10–15 participants is often enough, especially if they provide rich, diverse perspectives.
🎯 2. What factors should be considered when selecting interviewees?
You want participants who can provide relevant, informed, and varied insights. Here are some key considerations:
✅ Relevance to the topic:
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They should possess or assess occupational competencies (e.g., educators, HR professionals, trainers, employees).
✅ Experience level:
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Include a range of experiences (novices, mid-level, experienced) to explore how competencies develop or are perceived over time.
✅ Role diversity:
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If studying a profession, you may want a mix of practitioners, supervisors, and stakeholders (like policymakers or training developers).
✅ Accessibility and willingness:
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Ensure participants are available and open to discussing their experiences honestly.
🛠️ 3. What preparation is needed for the interviewer?
Thorough preparation boosts the quality and reliability of your data.
📚 Content Preparation:
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Understand the core concepts of occupational competency in your field.
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Develop a semi-structured interview guide: Key questions + space for follow-ups.
🧠 Skill Preparation:
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Practice active listening, probing, and follow-up questioning.
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Stay neutral and non-judgmental; let the interviewee lead with their story.
🔍 Technical & Logistical:
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Test recording devices and ensure a quiet, private space.
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Get ethical clearance if needed (consent forms, confidentiality procedures).
💬 Mock Interviews:
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Doing a few pilot interviews helps refine your questions and technique.


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