Abstract: Indonesia has experienced problems in teacher quality, especially science teachers. Teacher-training programs in which preservice teachers are taught to use the most appropriate science teaching methods are critical in order to prepare qualified teachers. Having a formative way to assess and discuss preservice science teachers’ preferred teaching orientations is important. Therefore, the Pedagogy of Science Teaching Test (POSTT) was translated and adapted into Bahasa as a formative assessment for preservice science teachers. There were eight steps in the translation and validation of a selected set of POSTT items into Bahasa (Indonesian language) involving Indonesian language experts and science content experts. Pilot study data indicates that the transadapted items are both reliable and valid for use with Indonesian teachers, and that the transadapted POSTT items are understandable and adequately fit with Indonesian school culture. This being the case, science educators in other countries may also wish to employ transadapted POSTT items for preservice science teacher education purposes.