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something of themselves into an interview. It may be some contrasting or complementary experiences,
perhaps, or some indications of their own personae, or at the very least they act as a sounding board.
Theycome out reflecting on how the interview has affected their thoughts, ideas, viewpoints, theories.
The researcher is, however, already looking to the next chain in the construction of the research, be it
another interview in a different place, or at a different time, or with a different person; or be it
observation, study of documents, questionnaire or whatever.
The researcher as a person
Thus the researcher is a finely tuned instrument with considerable skills, but is a person no less,
with values, beliefs and a self. Since these are all bound up with the research, it is a very personal
business. It frequently has as much to do with the understanding of oneself as of the world. For this
reason, research diaries are often kept, containing reflexive observations. Thus the report may include
some of these observations in a research biography, which acknowledges that the researcher is part of the
research process and does not somehow stand outside it.
The researcher's own background, interests and values will be influential in selecting a topic for
research. There are, however, other criteria used in selecting subjects for study. These include balance,
which will direct one to areas and subjects as yet uncovered; refinement and development, where
previous studies have not exhausted the topic; relevance, where the research is deemed to be directed
toward some social good.
The research subject is thus identified partly by personal interests and values, as are some choices
within the study, such as what to concentrate on, whom to see and talk to, what one sees and notices. The
conduct of the research, however, is subject to checks and balances. One of these is representative
sampling, or what Ball calls 'naturalistic sampling' (Ball, 1990, p. 102). This covers places, times, and
persons. Thus, if we were studying teachers' or pupils' perspectives, or the culture of a group, we would
need to consider them in different settings, since it is well known that behaviour can differ markedly in
different situations, as noted in Section 5.1. This goes for interviewing as well as for observation. The
character of a discussion and the quality of material can show a marked contrast between an interview
held in the formal circumstances of a teacher's office and one held in the informal ambience of a pub. The
same point applies to time. Weekly and yearly cycles, for example, are critical in schools. If our research
sampled at just the beginnings and ends of terms, weeks, or days, we should end up with a distorted study
if we were to claim our results applied more generally. Again, if we are seeking to represent a group in
our findings, we should ensure that we have sampled across that group according to some appropriate
criteria, which might be, for example, age, gender, ethnicity, or subject specialization.
Systematic sampling on this scale is not always possible, but at least the basis of one's sampling as
far as it goes should be made clear. Sampling biases easily creep into qualitative work. Ball, for example,
describes how he concentrated upon the academic teaching in the school and saw little of the 'non-
academic' curriculum. He gave little attention to pastoral work or extra-curricular activities and observed
those lessons to which he could gain access. He admitted that his 'account of the school is as a result
profoundly distorted' (Ball, 1984, p. 77). Hammersley also reflects on how, in his research, he made ad
hoc decisions about which lessons to record, concentrated on oral aspects of classroom work, made
irregular visits to the staffroom, and indulged in uneven interaction with teachers. All of this raises
questions about 'the representativeness of my data to which the lack of systematic sampling gave rise'
(Hammersley, 1984, p. 51). In general, it is necessary to aim for 'intentional, systematic and theoretically
guided' sampling (Hammersley, 1984, p. 53).
This cannot always be fully achieved in qualitative work because of (a) its initially largely
unsystematic, exploratory nature; (b) problems of negotiating access; (c) problems of gathering and
processing data using only one set of ears and eyes. Some unrepresentativeness is almost inevitable,
therefore. Often, one has to make do with an 'opportunity sample' in those areas where access is offered;
or a'snowball sample', where the sample is developed through personal contact and recommendation. In
all these cases the biases should be recognized and no inappropriate claims made.
However rigorous the methods used, the research is always a construction. This is because
researchers must put their own selves into the research and interpret what they see or hear. This is so