I believe it was also coupled with survey data about how many times the parents experienced financial stress. If being more terse at the end-of-the-month can b

I believe it was also coupled with survey data about how many times the parents experienced financial stress. If being more terse at the end-of-the-month can be reliably reproduced, what other causitive factor would you propose? And why would it apply to some families but not others? What hints do you have that lead you to the conclusion that poverty and terseness probably share a common cause?