Add Yahoo as a preferred source to see more of our stories on Google. A study found that debate training may improve your chances of being promoted into leadership roles. Learning to argue well ...

Sometimes it is necessary to be assertive at work, but you must be careful when dealing with colleagues who may interpret your assertive nature as pushiness, according to the Harvard Business Review.

If you're a team player who keeps their head down and never ruffles feathers, it might be why you haven't been promoted. A recent study in the Journal of Applied Psychology found that assertiveness is ...