There is an idiom in China called 'quiet as a virgin, active as a runaway rabbit'. Its original meaning is that when the army is not in action, it is as calm as an unmarried woman, and when it moves, it is as agile as an escaped rabbit. This idiom is still used today, but some subtle changes have occurred. For example, when some girls refer to their own personality, they like to describe it as 'qu...

Cattell's 16 Personality Factor (16PF for short) Cattell's 16PF, also known as Cattell's 16 Personality Factor Test, is one of the most complete psychological measurement tools in the world. The 'Cattell 16 Personality Factors Test Scale' was compiled by Professor Raymond B. Cattell (1905-1998) of the Institute of Personality and Ability at Illinois State University in the United States. The Catt...