okie...got more in depth info liao
the test or rather e classification was done by this Greek physician Hippocrates as way back as 400BC. "Melancholic, "Sanguine", "Choleric", and "Phlegmatic" are easily classified into these four catergories in e same order of "Guardian", "Artisan", "Idealist", and "Rationalist"
The melancholic individual is at first only slightly excited by any impression received; a reaction does not set in at all or only after some time. But the impression remains deeply rooted, especially if new impressions of the same kind are repeated.
The phlegmatic person is only slightly excited by any impression made upon him; he has scarcely any inclination to react, and the impression vanishes quickly.
The choleric and sanguine temperaments are active, the melancholic and phlegmatic temperaments are passive. The choleric and sanguine show a strong tendency to action; the melancholic and phlegmatic, on the contrary, are inclined to slow movement.
The choleric and melancholic temperaments are of a passionate nature; they shake the very soul and act like an earthquake. The sanguine and phlegmatic are passionless temperaments; they do not lead to great and lasting mental excitement.
More indepth info is available here:
http://www.angelicum.net/html/four_temperaments.html with both e good n bad sides of the temperment stated.