Dr. quinones is seeing a client who clearly suffers from a personality disorder, but instead of adhering to the "category" method of diagnosing this problem, she chooses to assess the client as being high, medium, or low on several different personality traits. she feels that this will give more insight into the client's unique pathology, and thus will inform his/her treatment. dr. quinones is clearly a proponent of the model.

Big five

Explanation:

The Big Five model of personality is a taxonomy for personality factors considered the most essential in human thinking, feeling, and behaving.

The five factors, epresented by the acronym OCEAN, are openness to experience, conscientiousness, extraversion, agreeableness, and neuroticism. Each factor has a set of correlated and more precise factors. 

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.