- Mon Nov 02, 2020 6:02 pm
The Justify Formula simply involves adding an answer choice you're considering to the premises from the stimulus to see whether, when the answer is added to those stimulus premises, the conclusion is fully validated.
We could do that here, by adding answer choice D to the premises in the stimulus.
Stimulus Premise 1:Brandon was 63 years old in 1930.
Stimulus Premise 2: The painting (i.e., the self-portrait) shows a young, dark-haired man who is obviously Brandon, but clearly is not a man of 63.
Answer Choice D (premise 3): Brandon at age 63 would not have portrayed himself in a painting as he had looked when he was a young man.
Conclusion: The recent dating of the Brandon self-portrait to 1930 is surely wrong.
With answer choice D added to the premises, the conclusion is fully validated. Why? Because if Brandon at age 63 (in 1930) would not have painted himself as a young man, then this painting that shows Brandon as a young man was surely not painted in 1930.
That's the Justify Formula on full display, and it works really well! All Justify questions can be solved similarly, so feel comfortable using that method on any of them!
I hope this helps!