Sentences with phrase «methodological difficulties»

Fourth, there are several methodological difficulties regarding the trim - and - fill method.

We do not know if the trend toward simpler procedures is actually in operation, owing to methodological difficulties of measuring cross-nationally the ease of constitutional amendment.

«Psychologists have been building personality profiles manually for years; however, there are serious methodological difficulties associated with this practice.»

Although prospective studies are clearly desirable in delineating the role of early environment in the development of later - life aggressive behavior, such investigations face daunting methodological difficulties.

But many of these findings are probably spurious, arising because the data are very poor and hard to get and the methodological difficulties are formidable.

(See reference 9for a critical review of the methodological difficulties regarding most of these studies.)