3.2 Methodology
3.2.1 Evaluation Research
The aim of evaluation research is to enhance knowledge, aid decision
making and facilitate practical applications for the findings. Childers
concludes, "The differences between evaluative research and other research
center on the orientation of the research and not on the methods employed"
(Childers and Van House 1993).
In the current POT study, the position and views of the tutors are explained
through evaluation research. The research is used to enhance tutor visibility
within the Dental School, explore their developmental needs and provide
tutors and the school with overarching feedback on the POT scheme. The
research also evaluates the impact of the POT scheme and gives evidence to
support future decision making with regard to the enhancement of
professional teaching practice. Research findings will enhance the position
and value of these staff members with regard to quality enhancement and
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Wallace and Van Fleet (2001) comment that evaluation should be carefully
planned, not occur by accident; have a purpose that is usually goal oriented;
focus on determining the quality of a product or service; go beyond
measurement; not be any larger than necessary; and reflect the situation in
which it will occur. Similarly, evaluation should contribute to an
organization's planning efforts; be built into existing programmes and
provide useful, systematically collected data. It is important that evaluation
research has a purpose and should not be an end in itself, there should be
some potential for action as a result of the evaluation outcomes, otherwise it
could be argued that there is no need for the evaluation. Evaluation should
take into account relationships between users and organisations and could
function as a communication tool between these groups. Evaluation should
be ongoing and provide a continual loop of monitoring, change and
improvement. Ongoing evaluation should also be dynamic with the
incorporation of new knowledge and changes in the environment.
This evaluation approach is appropriate as the POT scheme has great
practical significance to the development of clinical tutors teaching at the
University of Glasgow Dental School. The intention of the design of this
evaluation research is that the University of Glasgow and similar
institutions with clinical teaching requirements will find the findings,
outcomes and recommendations useful and informative, and they will lead
to action. The POT literature suggests that POT can work in many settings,
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study context of chairside dentistry and to improve and develop POT for
Dental tutors.
As the person who set up the POT scheme in the Dental School at Glasgow,
and having considered the importance of researching the scheme from its
inception I was uniquely placed to evaluate the POT scheme from the start.
Evaluation of the scheme was necessary to gain insight into how the
scheme was operating, to understand participants' perspectives on their
teaching practice and to find out what worked and what did not work.
Clearly, the project aims were focused on improving teaching practice,
modifying and adapting what was already occurring to enhance the success
of teaching in this context, and evaluation research was considered an
appropriate way of researching the scheme. Evaluation methodology was
considered ideal to assess the effects of the scheme, to determine whether it
works as an intervention, to gauge the benefits for participants within the
community of practice and to illustrate how effective the scheme is for
development of teaching practice. The ultimate aim of the POT scheme is
to improve student experience; this is, however, difficult to measure as the
students are not the direct recipients and participants in the scheme.
There are four recognised evaluation strategies (Trochim 2006). The first
strategy is that of ‘scientific-experimental models’, here the focus is on
objectives based research, it concerns itself with impartiality and objectivity
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constructivism adopted for this study. The second strategy is the
‘management-oriented systems model’; these models are used in business
and government where evaluation tends to sit within a larger framework.
The third section of strategies is the ‘qualitative/anthropological models’.
These models aim to retain the phenomenological quality of the evaluation
context and value subjective human interpretation within the evaluation
process. This strategy fits well with the current study. The fourth group of
strategies are the ‘participant-oriented models’, where importance is placed
upon the evaluation participants , in this case the users of the POT scheme
and the stakeholders in managerial positions, so again this model fits well.
The current study uses a blend of the third and fourth strategies described.
Evaluation research can be further subdivided into formative and
summative (Trochim 2006). Formative evaluations strengthen or improve
what is being evaluated; this is reflected within the current study, as it is via
the findings that I aim to provide improvements to the current scheme. The
current study can, however, also be seen as summative evaluation of the
first main stage of implementation of the POT scheme as it examines the
outcomes, effects and impact of the newly established POT scheme.
The steps in performing evaluation research (Northwest, Centre for Public
Health Practice 2017) are to engage the stakeholders, describe the scheme,
focus the evaluation design, gather credible evidence, justify conclusions,
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As the current study looks at the set-up and administering of a POT scheme
as well as researching its impact, I have also provided some process
evaluation. Analysis will show variations in the way the scheme is
conducted away from the suggested process given in the guidance. This
analysis may highlight strengths and weaknesses in the current scheme
regarding its functionality. Process evaluation is probably the most frequent
form of evaluation (Weiss 1998) and looks at what a programme actually
does (Rossi et al 2004).
Qualitative evaluation is appropriate when the phenomena under
investigation cannot be quantified and more attention needs to be given to
subjective issues such as human experience and behaviour (Powell and
Connaway 2004). Qualitative methods allow research to be dynamic and
adaptive with an understanding of specific context and history. It also
allows an element of flexibility to account for unpredicted occurrences.
Qualitative methods are also very labour and time intensive with regard to
data collection and analysis. Human experience and behaviour figure
largely in this current study and this explains the qualitative nature of the
evaluation study.