The '''Eysenck Personality Inventory''' ('''EPI''') measures the two original traits described in the personality theory of [[Hans Eysenck]]. These are [[extraversion]] and [[neuroticism]]. The test was published commercially by Hans and his wife [[Sybil Eysenck]] in 1963 as a revision of the [[Maudsley Personality Inventory]]. It was subsequently superceded by the [[Eysenck Personality Questionaire]] which introduced the third dimension of [[Psychoticism]]
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The '''Eysenck Personality Inventory''' ('''EPI''') measures the two original traits described in the personality theory of [[Hans Eysenck]]. These are [[extraversion]] and [[neuroticism]]. The test was published commercially by Hans and his wife [[Sybil Eysenck]] in 1963 as a revision of the [[Maudsley Personality Inventory]]. It was subsequently superceded by the [[Eysenck Personality Questionnaire]] which introduced the third dimension of [[Psychoticism]]