The Marshmallow Test: What Does It Really Measure?
&gt; The researchers also, when analyzing their test’s results, controlled for certain factors—such as the income of a child’s household<p>Is that a valid thing to do? If &quot;will power&quot; was a strongly inherited trait, and the theory is that will power leads to increase household income in adult life, then this controlling would remove most of the signal.<p>The original paper relied partly on a questionnaire that asked the parents how good their kids were at self-control. That seems unlikely to be reliable. They also used SAT scores, which seems like a better measure. The abstract for the new paper doesn&#x27;t mention what they measured.<p>In conclusion, I&#x27;m not sure I learned anything here.