Krisanachot Bualar and Duchdeun Bhanthumnavin
National Institute of Development Administration, Thailand
This article proposes a theoretical model of the Interactionismparadigm and investigates
how psychological states, psychological traits and situational factors are related to
study engagement behavior. The sample comprised of 304 undergraduate students of
a public university in Bangkok province. The model was tested with structural equation
modeling techniques. The main contribution of this study pertains to the results of the
path model. The results showed that themodel partially supported the interactionism
paradigm, in addition, psychological states fully mediated the relationships between
study engagement and two latentconstructs (situational and traits).Furthermore,
latentpsychological state displayed the highest path coefficient to study engagement,
followed by situational latent and psychological traits which all together could explain
the variance of the study engagement for 32.2%. Moreover psychological traits and
situational factors directly affected psychological states, accounting for 47.5% of the
variance. Finally, the findings suggested an important factorfor psychological traits
was needforachievement, while an important factorfor situational factors was social
support from friends, and favorable attitude toward learning was important factorfor
psychological states
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