Beliefs about yoga may influence participation in yoga and outcomes of yoga interventions. There is currently no scale appropriate for assessing these beliefs in the general U.S. population. This study took the first steps in developing and validating a Beliefs About Yoga Scale (BAYS) to assess beliefs about yoga that may influence people's engagement in yoga interventions. Items were generated based on previously published research about perceptions of yoga and reviewed by experts within the psychology and yoga communities. 426 adult participants were recruited from an urban medical center to respond to these items. The mean age was 40.7 (SD = 13.5) years. Participants completed the BAYS and seven additional indicators of criterion-related validity. The BAYS demonstrated internal consistency (11 items; α = 0.76) and three factors emerged: expected health benefits, expected discomfort, and expected social norms. The factor structure was confirmed: x2 (41, n = 213) = 72.06, p < .001; RMSEA =.06, p = .23. Criterion-related validity was supported by positive associations of the BAYS with past experiences and future intentions related to yoga. This initial analysis of the BAYS demonstrated that it is an adequately reliable and valid measure of beliefs about yoga with a three-factor structure. However, the scale may need to be modified based on the population to which it is applied.

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