According to this Preamble, what are three things that “the people of the United States” wanted to do by establishing the Constitution?

Psychologists studying infant memory want to determine at what age babies can remember specific events. an experimenter uses several puppets to demonstrate a series of actions while the infant watches. after a delay, the experimenter records how many of the actions the child imitates when playing with the puppets. what is the dependent variable?

Immigrants arriving in the united states during the late 1800s experienced many difficulties. which of the following was a problem which large numbers of immigrants faced?

Which of the following was featured in the middle-class lifestyle of the gilded age? a new emphasis on acquiring goods a return to classical ideals renewed interest in controlling journalists a reflection of rural values