The study aims to investigate the effect of the personality traits: Extroversion, introversion, instability (emotionality) and stability on short and long – term memory among Al-Quds Open University students at Tulkarm Educational Region. To achieve this purpose, the Eysenck Personality Inventory (EPI) was applied at a sample consisted of (200) students, and then the sample was divided into four equal groups of 25 male and 25 female for each group according to their scores on the above mentioned test: Extroverts, introverts, emotionality and stable students. After using two tests for measuring the short and long – term memory, and by using one - way analysis of variance, results show that extraverts and emotionality students are better than introverts and stable students in short- term memory, whereas the introverts and stable students are better than extraverts and emotionality in long- term memory. These results are in line with the literature review of this study.

The study aims to investigate the effect of the personality traits: Extroversion, introversion, instability (emotionality) and stability on short and long – term memory among Al-Quds Open University students at Tulkarm Educational Region. To achieve this purpose, the Eysenck Personality Inventory (EPI) was applied at a sample consisted of (200) students, and then the sample was divided into four equal groups of 25 male and 25 female for each group according to their scores on the above mentioned test: Extroverts, introverts, emotionality and stable students. After using two tests for measuring the short and long – term memory, and by using one - way analysis of variance, results show that extraverts and emotionality students are better than introverts and stable students in short- term memory, whereas the introverts and stable students are better than extraverts and emotionality in long- term memory. These results are in line with the literature review of this study.