The book The 7 Habits Of Highly Effective Teens by Sean Covey talks about four basic personality types: the Win-Lose, Lose-Win, Lose-Lose, and Win-Win personalities.
To me, no personality can be into a single, narrow category. People aren't always one way or another. In fact, some people might not even be more of one thing than another.
There are certain situations, preferences and biases, that affect a person's attitude. With some people, they have one attitude, and with others they have another.
I think Mr. Covey was trying to abridge a subject that should have had it's own book into a single chapter. Human attitudes are simply too broad a subject to write a few pages on and then say that those pages have everything there is to know about attitudes and personalities.
Writing this book, Sean Covey seems to have only barely touched on human personalities.