This study aimed to adapt the well-established Science Teaching Efficacy Belief Instrument- B (STEBI-B) for preservice teachers and to pilot the new instrument to determine its validity and reliability in The Arts. The authors argue that this study offers new contributions to the field of educational measurement in The Arts, specifically in measuring primary preservice teacher self-efficacy for learning areas like music and visual arts. The findings reveal that Arts Teaching Efficacy Belief Instrument (ATEBI) had good internal consistency and re-test reliability on the personal teaching efficacy scale. Furthermore, it was found that ATEBI had good validity statistics using ANOVAs on all scales.