The basic assumption shared by trait theorists is that

Answers....

the unconscious mind is the underlying source of our traits.

an individual's traits are consistent across different situations.

people possess the traits to the same degree but differ in how they choose to apply them.

traits are learned habits that are modified by reinforcers.

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http://en.wikipedia.org/wiki/Trait_theory

people possess the traits to the same degree but differ in how they choose to apply them.

The basic assumption shared by trait theorists is that an individual's traits are consistent across different situations.

The basic assumption shared by trait theorists is that an individual's traits are consistent across different situations.

To understand this, we can break down the question and its answer options. The question asks about the basic assumption shared by trait theorists. This means we need to identify the fundamental belief or idea that trait theorists hold. The answer options provided are:

1. The unconscious mind is the underlying source of our traits.
2. An individual's traits are consistent across different situations.
3. People possess the traits to the same degree but differ in how they choose to apply them.
4. Traits are learned habits that are modified by reinforcers.

By analyzing these options, we can eliminate answers that do not align with the basic assumption of trait theorists.

Option 1 suggests that the unconscious mind is the underlying source of our traits. This idea pertains more to psychodynamic theories of personality, such as those proposed by Sigmund Freud. Therefore, option 1 is not the correct answer.

Option 3 suggests that people possess the traits to the same degree but differ in how they choose to apply them. While this idea may be relevant in understanding individual differences, it does not specifically address the consistency of traits across situations. Therefore, option 3 is also not the correct answer.

Option 4 suggests that traits are learned habits that are modified by reinforcers. This idea aligns more with behaviorist theories, such as those proposed by B.F. Skinner. However, it does not specifically address the consistency of traits across situations. Therefore, option 4 is not the correct answer.

Option 2 states that an individual's traits are consistent across different situations. This aligns with the basic assumption of trait theorists. They believe that traits are stable and enduring characteristics that remain consistent across various contexts or situations. Therefore, option 2 is the correct answer.

In summary, trait theorists share the basic assumption that an individual's traits are consistent across different situations.