Sentence:  Notice also that the credibility of noncommittal observational beliefs will compare in a similar way with the credibility of more <WSD>committal</WSD> (or theoretical) observational beliefs, such as belief that addition of a base solution to an acid solution (to take the more <WSD>committal</WSD>, or theoretical, version of the noncommittal observational belief just mentioned). 
Meaning of the word marked with <WSD> tags:  Of or relating to commitment.