As Table 3 shows, this is different for SAT verbal analogy, where verbs are still the most important feature type and the only whose presence/absence makes a statistical difference.
this time coordinating conjunctions (with prepositions) do help a bit (the difference is not statistically significant) since SAT verbal analogy questions ask for a broader range of relations, e.g., antonymy, for which coordinating conjunctions like but are helpful.