If the studies are inconsistent, it means that at least some of the age group from the first study will not be included in the second study, or some of the age group from the second study will not be in the first study. Therefore, to determine if the two studies are inconsistent in their description of generation A we must compare the age groups from the two studies to see if either one includes people not included in the other study. In other words, we need to determine if the age ranges match up exactly when the year of the study is taken in to consideration. In the first study from 2007, generation A is defined to be people ages 15–26. Three years later, in 2010, the second study was published and defined generation A to be people ages ages 18–29.First we examine the low end of the age ranges. We note that someone who was 19 years old in 2007 would be years old in 2010. Now we examine the high end of the age ranges. We note that someone who was 30 years old in 2007 would be years old in 2010. The low and high ends of the age ranges for the two studies when the year the studies were published is taken in to consideration. Therefore, the studies inconsistent.