Agreed. He also suggests that there were obvious controls that should have been used but were not:
Perhaps the most problematic aspect of the Inbar and Lammers paper, however, is the above mentioned lack of the obvious control: they didn’t ask conservatives about their biases (nor, for that matter, did they ask another obvious control group: politically neutral or middle of the road faculty).
Agreed. He also suggests that there were obvious controls that should have been used but were not: