Hello! Please help me out! The graph shows the number of teen motor vehicle fatalities that occurred between 2006 and 2013.

According to this graph, the number of teen drivers involved in fatal crashes

has decreased in recent years.
has stayed the same over the years.
is higher among male drivers than female drivers.
has increased since 2006.

Fatal crashes have gone way down from 2006 because of the safety of airbags now in cars  

Explanation:

Hope this helps

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.