Latent partition analysis was used to generate content categories from judgmental data gathered on Barth Scale items from 23 open education experts. Principal component analysis was employed to examine constructs derived from response data gathered from 78 open and 113 traditional teachers. Alpha internal consistency reliabilities were developed for item clusters defining each dimension. Relationships between the judgmental categories and response dimensions facilitated naming the derived dimensions. Evidence of content and construct validity and of internal consistency reliability indicate appropriate scoring and interpretation for Barth Scale items.
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