problematic use among University of Jos undergraduate students. 200 participants who

own and use smartphones, comprising 82 males (41%) and 118 females (59%), and aged

between 21 and 35 years drawn through convenience sampling method took part in the

study. Two instruments were used to measure the variables in the study - the Problematic

Use of Mobile Phones (PUMP) scale measured smartphone problematic use, whereas the

Big Five Inventory (BFI) measured the Big Five Personality traits. Hypotheses were tested

using the Pearson Moment Correlation Tool through the SPSS version 26 at 0.05 level of

significance. Results revealed that extroverts, r (198) = 0.143; p= 0.043, experience

smartphone problematic use. However, agreeableness, conscientiousness, neuroticism and

openness to experience were not positively correlated with smartphone problematic use. A

number of recommendations were advanced, including that clinicians educate, assess, and

help extroverts manage the urge to use their smartphones excessively; laws guiding usage

while at work or school be promulgated by policy makers, and further larger population of

study be used to ascertain the veracity or otherwise of claims of this study.