Which instrument is specifically designed to measure the "big five" factors of personality?

The NEO Personality Inventory-3 (NEO-PI-3) is designed specifically to assess the "big five" factors of personality, which are openness to experience, conscientiousness, extraversion, agreeableness, and neuroticism. This inventory uses a well-researched and validated approach to measure these traits, providing a comprehensive overview of an individual's personality profile. The "big five" model is widely accepted in the field of psychology for its robustness in explaining human behavior and predicting various life outcomes.

Other instruments, such as the Myers-Briggs Type Indicator, focus on different aspects of personality, categorizing individuals into 16 distinct personality types rather than measuring the big five factors. The Beck Depression Inventory is specifically aimed at assessing the severity of depression and is not a personality assessment tool. The Rorschach Inkblot Test is a projective test that seeks to understand an individual's thoughts and feelings through their interpretations of ambiguous inkblots, rather than providing a structured measurement of personality traits like the NEO-PI-3 does.