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Evaluation - Politics - Prejudice - Bias.
The evaluation of an investigation can be affected
by
politics, prejudice and bias.
In politics, some parts of an
investigation might be given
a greater level of importance than others.
Some parts of an investigation might not be mentioned at all.
The process of being selective with
information so that it seems
to support the outcome you want is called spin by politicians.
Spin is not good because it
is less than honest.
It is dishonest because it deliberately and knowingly
misrepresents the conclusions of a
scientific piece of work for political
convenience.
Prejudice means that someone has decided what they
want
to believe before they do the experiments.
Prejudice can make a scientist only use data which
supports
what they want to say while ignoring other data they have.
A proper scientific evaluation will
consider
all of the data from an
investigation.
Bias
means that the interpretation of the results is unfair.
For example, a student might interpret their results to show
what they think their teacher wants the results to be.
Research that shows that confectionary is good
for you
might be less credible (believable) if it is funded
by a confectionary
manufacturer
than if it is funded by a public health charity.
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