Topics: Economics and Personal Finances, Socioeconomic Class. 1  Richard Fry is a senior researcher focusing on economics and education at Pew Research Center. 2  Rakesh Kochhar is an associate director of research at Pew Research Center.
In the United States, the Census Bureau determines who is poor using an economic poverty measure, by calculating official poverty estimates using a set of dollar-value thresholds, or minimum amount of income needed to meet basic needs, that vary by family size and composition.
In the present study, moresystematic evaluations of the behavioral character-istics of children with low memory scores wereobtained by asking the childrenâs teachers to com-plete a behavioral checklist that addresses such ele-ments as inattentive, hyperactive, and oppositionalbehaviors (Conners, 2005).