Abstract
The study examines the Personality Traits as Predictors of Academic Achievement of Public Secondary School Students in Benin Metropolis. To guide the study, six research questions were raised and five hypotheses were formulated for the study. The descriptive survey research design was adopted. The sample for the study consisted of 200 senior secondary school 2 students. The simple random samplingtechnique was used to select the sample. The instrument for the study was a 20-item questionnaire constructed by the researcher: titled “Students Personality Assessment Questionnaire (SPAQ)” which was duly validated with a reliability index
of 0.77 using cronbach alpha. Proforma was used to collect students scores The data obtained from the instrument was analysed using mean and standard deviation and Linear Regression Analysis. Finding revealed that that openness, conscientiousness
and extraversion positively predict public secondary school students` achievement while agreeableness and neuroticism negatively predict public secondary school students` academic achievement in Benin Metropolis. Also, the findings revealed that the five big domains significantly predict male and female students` academic achievement in Benin Metropolis. From this result, it was therefore recommended that students who possesses openness, contentiousness, extraversion and neuroticism personality trait can achieve better academically. Again, those students possessing agreeableness personality trait, teacher may guide them towards attaining better academic achievements and school management should employ the services of experts to give seminars and workshop to both students and teachers on personality traits and their effects on students' academic achievement.