Jl. of Technology and Teacher Education (2016) 24(4), 5-31 Measuring and Supporting Pre-Service Teachers’ Self-Efficacy Towards Computers, Teaching, and Technology Integration CARITA KIILI University of Jyvaskyla, Finland carita.kiili@jyu.f MERJA KAUPPINEN University of Jyvaskyla, Finland merja.a.kauppinen@jyu.f JULIE COIRO University of Rhode Island, USA jcoiro@snet.net JUKKA UTRIAINEN University of Jyvaskyla, Finland jukka.t.utriainen@jyu.f This paper reports on two studies designed to examine pre-ser- vice teachers’ self-effcacy beliefs. Study I investigated the mea- surement properties of a self-effcacy beliefs questionnaire com- prising scales for computer self-effcacy, teacher self-effcacy, and self-effcacy towards technology integration. In Study I, 200 pre-service teachers completed the self-effcacy questionnaire. Confrmatory factor analyses resulted in a modifed measure- ment model consisting of the three hypothesized self-effcacy scales. Study II reports on an intervention to clarify the effects of digital video composition experiences on these same three self-effcacy variables. Participants were 22 pre-service teach- ers and 16 adult education students enrolled in a Finnish univ- eristy education course. Data comprised pre- and post-measures