Schizophrenia explanations are both psychological and biological however the best solution is probably the diathesis stress model; this combines both biological and psychological approaches to schizophrenia. The diathesis stress model suggests that people have vulnerability for schizophrenia (diathesis) which develops only if the individual is exposed to certain environmental factors (a stressor.)
One psychological explanation for schizophrenia is the double blind theory. An example of the double blind theory is, when a child has repeated experiences with one or more family members in which he/she receives contradictory messages. Repeated exposure to such contradictory messages causes the child to resort to self-deception and to develop a false concept of reality and inability to communicate. Those who are exposed to numerous counts of contradictory messages (the double blind theory) are more likely to develop schizophrenia and experience the negative symptoms of schizophrenia in their later life, such as flattened affect and social withdrawal.
A study that had been conducted found that schizophrenics reported a higher recall of double blind statements by their mothers compared to non-schizophrenics. This study supports the double blind theory however; this evidence may not be reliable as patients recall may be affected by their schizophrenia. As the study had been conducted after the schizophrenia had been diagnosed and was asked about events leading onto the onset. Their recall could be negatively affected by the events surrounding the onset of schizophrenia resulting in them saying they experience double blind statements from family members, which might not even be the case but just a result from the diagnosis of schizophrenia.
Also other studies have been less supportive. One study that was conducted, measured patterns of parental communications in families with a