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| Because it knows that quality is a key factor of the reliability of results, LLH has implemented procedures in compliance with ISO 9001 certification. | |
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| Questionnaires of all studies pre-coded and printed in France (France and abroad). |
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| Loyal fieldwork teams, trained in our methods and paid by the day, for 25 years. |
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| Systematic fieldwork briefings, accompanied by detailed written procedures. |
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| A fieldwork manager always present to supervise the fieldwork. |
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| Trips abroad to monitor foreign fieldwork. |
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Interviewing halls and rooms that provide a controlled environment for tests, particularly in terms of temperature, odour, light, colour...nt for tests, particularly in terms of temperature, odour, light, colour...
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| Double checking of the questionnaires. | |
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| Systematic control of interviews. |
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All questionnaires punched in France
(France and abroad). | |
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