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A Comparison Of Biological And Psychological Explanations Of Schizophrenia

743 words - 3 pages

A Comparison of Biological and Psychological Explanations of Schizophrenia

Both the biological and the psychological explanations of
schizophrenia are supported by empirical evidence which justify their
explanations. However ,within the biological explanation there is the
genetic explanation which is used largely based on scientific research
such as that of Gottesman’s research using meta-analysis which looked
at the family (including twin) relationships and concordance rates of
schizophrenia. The studies used Gottesman’s research was
scientifically based and because of the large number of studies and
therefore the sample used, the biological research can be credited for
being representative. However, research into the psychological
explanation such as the family theory and the Schizoprenogenic Mother
is based on uncontrolled clinical observations as is the double bind
communication. This suggests the possibility of researcher bias and no
firm cause and effect conclusions can be made. Critics would therefore
argue that the biological explanation has much more credibility where
research evidence is concerned than the psychological model. Due to
the size and nature of the research.

Although research in the biological explanation was scientifically
based is was not laboratory based. As there was no manipulation of the
IV or DV neither the biological or the psychological can make a firm
cause and effect conclusion as to the causes or explanations of
schizophrenia. For example we can no confirm that the enlarged brain
ventricles are not the result of schizophrenia and not the cause.
Likewise we can not say for sure that a Schizoprenogenic mother isn’t
the result of having a schizophrenic child and not the cause of
schizophrenia in the child.

Both the psychological and biological explanation of schizophrenia are
criticised for being too simplistic an explanation of the causes of
schizophrenia. However, both theories are not rigid in their views and
most scientists believe that is a complex interaction between

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