Research methodology
54
— knowledgeable concerning
the topic and local conditions;
— not the object of study themselves; and
— not biased concerning the topic (for example, health staff are usually not the best
possible interviewers for a study on alternative health practices).
•
Train research assistants carefully in all topics covered in the field work manual
as well as in interview techniques
and make sure that all members of the research
team master interview techniques such as:
— asking questions in a neutral manner;
— not showing by words or expression what answers one expects;
—
not showing agreement, disagreement or surprise; and
— recording the answers precisely as they are provided, without sifting or interpreting
them.
•
Pre-test research instruments and research procedures
with the whole research
team, including research assistants.
•
Take care that research assistants are not placed under too much stress
(requiring too many interviews a day; paying per interview instead of per day).
•
Arrange for on-going supervision
of research assistants. If, in case of a larger
survey, special supervisors have to be appointed, guidelines should be developed for
supervisory tasks.
•
Devise methods to assure the quality
of data collected by all members of the
research team. For example, quality can be assured by:
— requiring interviewers to check whether the questionnaire is filled in completely
before
finishing each interview;
Research methodology
55
— asking the supervisor to check at the end of each day during the data collection
period whether the questionnaires are filled in completely and whether the recorded
information
makes sense; and
— having the researchers review the data during the data analysis stage to check
whether data are complete and consistent.
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