Pg 13 Movies

The Effects of PG and PG13 Movies
The team’s research design is to randomly select two PG and two PG-13 movies and record the number of sexual content and violence occurred in each movie. Then, we observe and compare the numbers recorded of each movie. The point of our social research is to explain that sexual content and violence has been cause of incivility among the youth. Thus, our hypothesis indicates that the higher the rate of sexual content and violence in the media (X), the higher incivility among children (Y). Whereas, X indicates the independent variable and Y indicates the response variable.
Additionally, in order to do our research on sexual content and violence, we will explore other literatures that have been published about this particular topic and see what other researchers have observed about this study. The following are our reseasources:
(Just type in the authors and the book, journals, or articles they’ve written about this particular topic and give a little summary of each one.)  
According to the Motion Picture Association of America's film-rating system, PG movies suggest parental guidance. MPAA expand this further by stating:

Some Material May Not Be Suitable For Children…the PG rating indicates, in the view of the Rating Board, that parents may consider some material unsuitable for their children, and parents should make that decision. The more mature themes in some PG-rated motion pictures may call for parental guidance. There may be some profanity and some depictions of violence or brief nudity. But these elements are not deemed as intense as to require that parents be strongly cautioned beyond the suggestion of parental guidance. There is no drug use content in a PG-rated motion picture. [1]
The above statement is stating that the parental guidance is suggested because some material may not be suitable for children. Additionally, there is no sexual or drug use content. However, there may be some profanity and violence...