They didn't measure materialism, and very poorly measured generosity. They had some of the participants journal what they were grateful for, they paid all the

They didn't measure materialism, and very poorly measured generosity. They had some of the participants journal what they were grateful for, they paid all the participants, and they suggested that participants make a supposedly anonymous donation of cash to an unknown cause. Keeping the money is supposedly materialism. No, it is not. Spending the money on frivolous status symbols might be materialism, but that wasn't measured. Keeping the money long-term, or spending it on something of importance, is financially responsible. Giving the money to an unknown cause (might even be an offensive cause) is foolhardy.