The Buddhist Affective States Scale (BASS) was developed as a pilot questionnaire to enable exploration of positive and negative affect states in the context of research on meditation. This is based on the recognition that other relevant questionnaires did not have sufficient item content on emotions experienced during and after meditation. Informed by Buddhist psychology, ten items were developed that inquire about different types of positive and negative emotions experienced by the respondent. The original development paper as well as three subsequent studies that all investigated the effects of a virtual reality meditation analyzed the BASS at item level. Currently, no information is available about the reliability and validity of the scale when using it as positive and negative affect subscale scores. While the scale can be used flexibly to fit the individual research contexts, it is highly recommended that users of the scale inform their analyses of the BASS by the appropriate prior psychometric analyses to ensure reliability and validity of results.