Abstract: Items of Eysenck Personality Questionnaire were translated into Chinese and analysed through biserial correlation with the 4 scales. A slightly modified EPQ (junior) in Chinese was given to 370 schoolchildren aged 7—15. Their scores in personality characteristics showed that (1) boys score higher extraversion and psychoticism than girls and girls have higher neuroticism and lie scores than boys, (2) the intercorrelation of PL is negative and very high, that of PE PN EN are all below 0.30 exclusively, (3) age trends are inverse to those observed in the adults, and the ENL trends are to some extent in accord with Eysenck's original testing, (4) the 3 scales combined suggest the trends of high percentage of low psychoticism, high percentage of low psychoticism and neuroticism, and high percentage of introversion, especially in girls, (5) most children's reports show a tendency of wide interest in every respect, but boys are now more venturesome and girls more active than before.

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