Pilar, a 7-year-old, knows that even though liquid poured from one glass into a bowl looks different, it is still the same amount of liquid. Pilar has achieved ________ in her thinking

Primary, secondary, and tertiary prevention are all targeted at preventing child maltreatment before it ever occurs

Indicate whether this statement is true or false.

In the research study described by your authors, which of the following factors was shown to be associated with an increase in sleep-related problems in children?

a. one extra hour of nighttime media usage by children b. regularly watching violent media after dinner time c. watching media with a siblings present but no parents in the room d. watching adult news broadcasts instead of children's programming