Published online by Cambridge University Press: 29 January 2018
Common observation indicates that some chronic schizophrenics are more extraverted than others. According to Eysenck (1960, p. 11) neuroticism is a distinct factor from psychoticism; one would therefore expect it to manifest itself to a varying extent in different chronic schizophrenics. These considerations suggested that it would be of interest to discover whether extraversion and neuroticism in a sample of chronic schizophrenics, as measured by their extraversion and neuroticism scores on the Eysenck Personality Inventory (Eysenck and Eysenck, 1963), a modified form of the Maudsley Personality Inventory (Eysenck, 1956), were significantly related to their psychiatric symptoms and to other characteristics such as sex, age and work efficiency.
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