Suppose you were an adolescent growing up in the United States in 1830. Where would you most likely live?

Zachary lets himself into the house with his own key. He immediately calls his mother at her office. They chat about what he did at school that day. She asks him to put a load of clothes into the washer and to start dinner for the family

Zachary is a a. self-care child. c. supervised child. b. neglected child. d. loner.

Like longitudinal research, cross-sectional studies can be threatened by

A) practice effects. B) participant dropout. C) sequential timing. D) cohort effects.