Therefore, we cannot be sure whether differences between the response distributions were due to differences in sample characteristics or to the interpretation of items.
There are, to be sure, vast differences between South Asia and sub-Saharan Africa, the disease's biggest killing field - culturally, politically, economically and geographically.
Efforts such as those of the Allen Brain Institute have shed some light on these markers, but future studies will need to analyze specific neuronal subtypes in order to be sure that differences between aged neurons and young neurons are truly due to aging and not different neuronal subtypes.
To be sure, the difference between accidentally hitting civilians with not-so-smart bombs and incinerating entire cities, as was customary only 70 years ago, is not to be ignored.
To be sure that between-school differences were not responsible for the effect, we restricted the sample to a single, large school, with the same results (see Text S1).
To be sure, there are differences between the current dot-com barrage and the huckstering done before Christmas and Hanukkah.
To be sure, there are differences between the two speeches.
To be sure, there are differences between the US and the UK in terms of media law.
To be sure, there are differences between the narratives about the birth and nativity of Jesus in Matthew and Luke on the one hand and the narratives about the birth and nativity of Jesus in the Qur'an on the other hand.
To be sure, the practical difference between big and small H-bombs isn't that one is exactly nicer to get hit with, but the big H-bombs certainly are a lot worse.
