The Wider Benefits of International Higher Education in the UK
The agreed ‘target’ characteristics of the interview sample are outlined in Table 3.
Stratification of the sample was conducted by selecting and inviting small groups of
graduates to interview
from within the volunteer pool, with repeated iterative adjustments
on the basis of the characteristics of those actually taking part in interviews. This required
substantial and persistent effort and communication amongst the interview team,
particularly given that a proportion of graduate volunteers who had been selected were
then not available for interview within the timeframe for the primary research.
As can be seen from Table 3, this rather labour-intensive, iterative process delivered an
actual interview sample which closely matched the target proportions for
most of the key
characteristics, particularly gender, level of study, institution type and, crucially, the country
groupings. For some other characteristics the ‘match’ to target was more approximate, but
some interviews at least were achieved for every targeted sub-group of all key variables.
More detail on the characteristics
of the sample achieved, including the countries of origin
of the graduates and their individual HE institutions, is given in Appendix 1.
The match against target for the more subjective characteristics of positive experience and
extent of links was not quite so high, but the sample did deliberately include a significant
number of examples anticipated to be less ‘positive’ overall, to counter risk of positive bias.
Classification against these two factors had to be made on the basis information supplied
by the
graduates prior to interview, whereas we found from detailed information provided
during interviews that these earlier responses were not always consistent. While this did
not affect the inclusion of ‘negative’ examples, the proportions of the respective sub-
groups of ‘positive’ respondents were somewhat different once the interview information
was taken into account. The targeted proportion for those with established professional
and personal linkages turned out simply
to be too high an estimate, in comparison with the
circumstances of graduates in reality.
As part of the iterative selection and invitation process, potential gaps in the range covered
by the original sample – such as certain subjects of study – were identified, which we
attempted to fill by issuing invitations to specific target groups within other alumni
networks, including a number of institutions and scholarship schemes.
The list of alumni
groups that supported the project in this way is given in Appendix 1.
In numeric terms, eligible volunteers within the original sample from the i-GO study
comprised around 180 graduates. Around 100 other volunteers came forward as a result
of our contacts via other alumni groups. It was from this combined group of 280 graduates
that we drew the final 100 graduates for interview.
The interviews were conducted by the interviewers within the research team over a period
of five weeks in early 2013; the duration of each interview was 35-50 minutes. The
‘portraits’ of interviewees and transcripts of interviews were analysed to identify reported
benefits
and other results of interest, which were then grouped and used as the basis for
coding of the interviews. This process was conducted largely on a ‘bottom-up’ basis, i.e.
the specific benefit types were identified from the interviews rather than using a
classification from previous literature, but taking into account what was available from the
literature and also the research team’s prior experience.
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