Type A and Type B personality theory - Wikipedia
https://en.wikipedia.org/wiki/Type_A_and_Type_B_personality_theory
WEBType A and Type B personality hypothesis describes two contrasting personality types. In this hypothesis, personalities that are more competitive, highly organized, ambitious, impatient, highly aware of time management, or aggressive are labeled Type A, while more relaxed, "receptive", less "neurotic" and "frantic" personalities are labeled Type B.
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