More than one study is needed before you can conclude that allowing people to stand while working is not a good thing. We don't even have to population details

More than one study is needed before you can conclude that allowing people to stand while working is not a good thing. We don't even have to population details to determine if the study population was properly selected and that all variables had been controlled for. The fact that the study was of only 20 people doesn't bolster the idea that the study was any good.