KNOWLEDGE AND ITS SOURCES
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A
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What counts
as knowledge? What do we mean when we say that we know some-thing? What is
the status of different kinds of knowledge? In order to explore those
questions we are going to focus on one particular area of knowledge
medicine.
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B
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How do you know when you are
ill? This may seem to be an absurd question. You know you are ill because
you feel ill; your body tells you that you are ill. You may know that you
feel pain or discomfort but knowing you are ill is a bit more complex. At
times, people experience the symptoms of illness, but in fact they are
simply tired or over-worked or they may just have a hangover. At other times,
people may be suffering from a disease and fail to be aware of the illness
until it has reached a late stage in its development. So how do we know we
are ill, and what counts as knowledge?
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C
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Think about
this example. You feel unwell. You have a bad cough and always seem to be tired.
Perhaps it could be stress at work, or maybe you should give up smoking.
You tool worse. You visit the doctor who listens to your chest and heart,
take's your temperature and blood pressure, and then finally prescribes
antibiotics for your cough
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D
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Things do not improve but you
struggle on thinking you should pull yourself together, perhaps things will
ease off at work soon. A return visit to your doctor shocks you. This time
the doctor, drawing on yours of training and experience, diagnoses
pneumonia. This means that you will need bed rest and a considerable time
off work. The scenario is transformed. Although you still have the same
symptoms, you no longer think that these are caused by pressure a work. You
now have proof that you are ill. This is the result of the combination of
your own subjective experience and the diagnosis of someone who has the
stains of a medical expert. You have a medically authenticated diagnosis
and it appears that you are seriously ill; you know you are ill and have
evidence upon which to base this knowledge.
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E
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This scenario
shows many different sources of knowledge. For example, you decide to consult
the doctor in the first place because you feel unwell - this is personal
knowledge about your own body. However, the doctor's expert diagnosis is based
on experience and training, with sources of knowledge as diverse as other
experts, laboratory reports, medical textbooks and yours of experience.
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F
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One source of knowledge is the
experience of our own bodies; the personal knowledge we have of change's
that might be significant, as well as the subjective experience of pain and
physical distress. These experiences are mediated by other forms of
knowledge such as the words we have available to describe our experience
and the common sense of our families and friends as well as that drown from
popular culture. Over the past decade, for example, Western culture has
seen a significant emphasis on stress-related illness in the media. Reference
to being ‘stressed end' has become a common response in daily exchanges in
the workplace and has become port of popular common-sense knowledge. It is
thus not surprising that we might seek such an explanation of physical symptoms
of discomfort.
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G
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We might also
rely on the observations of others who know us. Comments from friends and family
such as ‘you do look ill' or 'that's a bad cough' might be another source
of knowledge. Complementary health practices, such as holistic medicine,
produce their own sets of knowledge upon which we might also draw in
deciding the nature and degree of our ill health and about possible
treatments.
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H
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Perhaps the most influential
and authoritative source of knowledge is the medical knowledge provided by
the general practitioner. We expect he doctor to hove access to expert
knowledge. This is socially sanctioned. It would not be acceptable to
notify our employer Unit we simply felt too unwell to turn up for work or
that our faith healer, astrologer, therapist or even our priest thought it
was not a good idea. We need on expert medical diagnosis in order to obtain
the necessary certificate it we need to be off work for more than the
statutory self-certification period. The knowledge of the medical sciences
is privileged in this respect in contemporary Western culture. Medical
practitioners are also seen as having the required expert knowledge that
permits then legally to prescribe drugs and treatment to which patients
would not. otherwise have access. However there is a range of different knowledge
upon which we draw when making decisions about our own state of health.
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I
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However,
there is more than existing knowledge in this little story; new knowledge
is constructed within it. Given the doctor's medical training and
background, she may hypothesise 'is this now pneumonia?' and then proceed
to look for evidence about it. She will use observations and instruments to
assess the evidence and-critically-interpret it in the light of he training
and new experience both for you and for the doctor. This will then be added
to the doctor's medical knowledge and may help in future diagnosis of
pneumonia.
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Questions 27-34
Reading Passage 3 has nine paragraphs, A-I.
Which paragraph contains the following
information?
Write the correct letter, A-I, in boxes
27-34 on your answer sheet.
NB You may use any letter more than
once.
27
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the contrast between the nature of personal judgment and the nature
of doctor ’s diagnosis
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28
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a reference of culture about pressure
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29
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sick leave
will not be permitted without professional diagnosis
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30
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how doctors’ opinions are regarded in the society
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31
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the
illness of patients can become part of new knowledge
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32
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a description of knowledge drawn from non-specialised sources other
than personal knowledge
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33
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an example
of collective judgment from personal experience and professional doctor
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34
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a reference that some people do not realise they are ill
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Questions 35-40
Complete the notes below.
Choose NO MORE THAN THREE WORDS from
the passage for each answer.
Write your answers in boxes 35-40 on
your answer sheet.
Source of Knowledge
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Examples
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Personal
Experience
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Symptoms of a
35 _______________ and tiredness
Doctor's
measurement by taking 36 _______________ and temperature
Common
judgment from 37 _______________ around you
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Scientific
evidence
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Medical
knowledge from the general 38 _______________ e.g. doctor’s medical
39
_______________
Examine the
medical hypothesis with the previous drill and 40 _______________.
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