Which theories are less concerned with the explanation of personality development and changing personality than they are with describing personality and predicting behavior based on that description?

Trait theories

Explanation:

trait theory believe that people's personality tend to be relatively stable over time.

According to this theory,  People tend to show tendencies to show a certain set of behavior and thought pattern that is unique, and would be extremely hard to change. For example if you're introverted by nature, it almost impossible for you to like being in public regardless of how many training you have with social situations.,

Because of this, personality development and changing personality almost never occurred when we're observing humans with trait theories.

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.