[antonfire]

> This study found that the "marshmallow test"—as a single measure—is no more or less predictive than a basket of other measures of self-control the study tested, or any of those other measures of self-control taken alone.

Are we looking at the same study? I don't see where "no more or less predictive than a basket" comes from, specifically where "no less predictive" comes from.

My reading of the abstract is that, the study found that a measure based on the "marshmallow test" ("preschool delay of gratification", RND in the article body), is not predictive of the outcomes they measured (11 capital formation outcomes).

It also found that a basket of measures of self-control (collected at various ages, RNSRI/RNCCQ in the article body) is predictive of the outcomes, whether you include the preschool measurement or not.

So from skimming the study without even reading the article, it sounds to me like they found that the preschool measure doesn't predict the outcomes they're measuring by itself, and it doesn't contribute predictive power when it's used as part of an index of self-control measured at a variety of ages.