Task performance is an essential determinant of organization life, including profit and
non-profit organizations. Lecturers' task performance in universities is vital to realizing the goals,
which include creating quality graduates and building competitiveness that promises sustainable
progress for all involved stakeholders. Therefore, it is crucial to investigate lecturers' task
performance by considering other relevant variables. Accordingly, this study examined Indonesian
lecturers' task performance based on innovative behavior, job involvement, and organizational
citizenship behavior (OCB). The study also attempted to find relevant models of innovative
behavior influencing lecturers' task performance, mediated by job involvement and OCB.
Methods: Questionnaires with the Likert scale were used to collect data from 230 lecturers selected
using accidental sampling. The data were analyzed using descriptive and correlational techniques
and structural equation modeling. Results: Innovative behavior, job involvement, and OCB
significantly affected the lecturers' task performance. Besides, job involvement and OCB
mediating innovative behavior affected the lecturers' task performance. However, the mediating
role of job involvement was more prominent than that of OCB. Novelty: A new model of
innovative behavior mediated by job involvement and OCB was developed, affecting lecturers’
task performance. It is hoped that the model can trigger interesting discussions and raise new hope
for task performance improvement based on innovative behavior mediating job involvement and
OCB.