Complex sentence: However, Rogers and Soule's 2009 study (see "Variables Influencing the Effect" above) also tested subjects' astrological beliefs, and both the Chinese and Western skeptics were more likely to identify the ambiguity within the Barnum profiles.
Split into simpler sentences: However, Rogers and Soule's 2009 study (see "Variables influencing the effect" above) also tested subjects' astrological beliefs. Both the Chinese and Western skeptics were more likely to identify the ambiguity in the Barnum profiles.