A social psychologist interested in the effects of media violence arranged to have 15 children watch a popular children’s TV show that included a lot of violence. Five were randomly assigned to watch the show on a small-screen TV, five on a standard size screen TV, and five a large screen TV. Immediately after, each child was left in a room with various toys and the number of seconds of play with violent toys was systematically recorded. What's the dependant variable and independent variable?

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.

Which of the following will form the composite function?