Matthew Sadler thinks the "4 Player Types Model" is worth a look
Are you an 'Activist', a 'Theorist', a 'Reflector' or a 'Pragmatist’, the four types of players identified by Karsten Müller and Luis Engel in their ChessBase course about player types? It might help to know, and in a review in the "New in Chess Magazine" English Grandmaster Matthew Sadler talks about the pros and cons of such a model and argues that it is useful to identify your strengths and weaknesses if you want to improve your game.
Source: chessbase.com