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The aim of this investigation was to look at the reliability and validity of Hans Eysenck's EPI Test. The EPI questionnaire comprises of items of a 'yes/no' variety.  

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Abstract The aim of this investigation was to look at the reliability and validity of Hans Eysenck's EPI Test. The EPI questionnaire comprises of items of a 'yes/no' variety. They are essentially intended as research tools (as opposed to diagnostic tools for use in clinical settings) and, as such, 'they are regarded as acceptable, reliable and valid' (Kline 1981, Shackleton and Fletcher, 1984).The Alternative Hypothesis was that there would be a positive correlation between the E and N scores for forms A and B of the EPI. The Null Hypothesis was that there would not be a positive correlation between the scores for forms A and B, and any such found relationship would be down to chance factors operating. The correlation study was carried out because we were looking for a relationship between the E scores and the N scores for forms A and B of Hans Eysenck's EPI Test. The independent...

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