Yes, that's partly true (although recipients don't appear to lose the benefit if they become employed), but what they're studying is a specific question, which is how giving unemployed people an unconditional stipend affects their future employment. They're not trying to study broader aspects of UBI, and I'd argue that if they wanted to do so, making the experiment much longer term would be more important than applying it to more people.
No, it's not pointless. It just studies one aspect of the problem. Yes, this is insufficient on its own, but more studies can be done, which can be designed particularly to examine the other questions that need to be answered.
A test for lead is usefully classified as a water quality test, even though you need to test for other compounds as well before you know if the water is safe.
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Yes, that's partly true (although recipients don't appear to lose the benefit if they become employed), but what they're studying is a specific question, which is how giving unemployed people an unconditional stipend affects their future employment. They're not trying to study broader aspects of UBI, and I'd argue that if they wanted to do so, making the experiment much longer term would be more important than applying it to more people.
They should also measure their health and happiness. Employment isn’t the full Picture.
Sure, a study should measure that. But not every study has to measure every variable.
This study should have, since those are key metrics for UBI in a projected robotics-era of job scarcity.
Since it didn't measure them it is pointless classifying it as a test of UBI.
No, it's not pointless. It just studies one aspect of the problem. Yes, this is insufficient on its own, but more studies can be done, which can be designed particularly to examine the other questions that need to be answered.
A test for lead is usefully classified as a water quality test, even though you need to test for other compounds as well before you know if the water is safe.